Home / 100,320,281.70-150,480,422.55-85,014,780.90

Finding the Fourth Proportional to 100,320,281.70, 150,480,422.55 and 85,014,780.90

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Solution

The fourth proportional to 100,320,281.70, 150,480,422.55 and 85,014,780.90 is: 127,522,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,320,281.70 : 150,480,422.55 = 85,014,780.90 : x
  2. Step 2: Convert to fraction form
    100,320,281.70/150,480,422.55 = 85,014,780.90/x
  3. Step 3: Cross multiply
    100,320,281.70x = 150,480,422.55 × 85,014,780.90
  4. Step 4: Simplify right side
    100,320,281.70x = 12,793,060,152,827,672
  5. Step 5: Solve for x
    x = 12,793,060,152,827,672/100,320,281.70
  6. Step 6: Final answer
    x = 127,522,171.35

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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.