Home / 85,130,015.94-127,695,025.60-20,433,821.01

Finding the Fourth Proportional to 85,130,015.94, 127,695,025.60 and 20,433,821.01

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Solution

The fourth proportional to 85,130,015.94, 127,695,025.60 and 20,433,821.01 is: 30,650,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130,015.94 : 127,695,025.60 = 20,433,821.01 : x
  2. Step 2: Convert to fraction form
    85,130,015.94/127,695,025.60 = 20,433,821.01/x
  3. Step 3: Cross multiply
    85,130,015.94x = 127,695,025.60 × 20,433,821.01
  4. Step 4: Simplify right side
    85,130,015.94x = 2,609,297,297,128,326
  5. Step 5: Solve for x
    x = 2,609,297,297,128,326/85,130,015.94
  6. Step 6: Final answer
    x = 30,650,731.92

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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.