Home / 85,477,688,149.95-128,216,532,224.92-71,763,959,433.15

Finding the Fourth Proportional to 85,477,688,149.95, 128,216,532,224.92 and 71,763,959,433.15

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Solution

The fourth proportional to 85,477,688,149.95, 128,216,532,224.92 and 71,763,959,433.15 is: 107,645,939,149.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,477,688,149.95 : 128,216,532,224.92 = 71,763,959,433.15 : x
  2. Step 2: Convert to fraction form
    85,477,688,149.95/128,216,532,224.92 = 71,763,959,433.15/x
  3. Step 3: Cross multiply
    85,477,688,149.95x = 128,216,532,224.92 × 71,763,959,433.15
  4. Step 4: Simplify right side
    85,477,688,149.95x = 9,201,326,017,248,327,892,992
  5. Step 5: Solve for x
    x = 9,201,326,017,248,327,892,992/85,477,688,149.95
  6. Step 6: Final answer
    x = 107,645,939,149.72

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Double scale
Find fourth proportional to 85,477,688,150.95, 128,216,532,226.42 and 71,763,959,434.15
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.