Home / 85,720,512.15-118,313,025.30-52,709,168.70

Finding the Fourth Proportional to 85,720,512.15, 118,313,025.30 and 52,709,168.70

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Solution

The fourth proportional to 85,720,512.15, 118,313,025.30 and 52,709,168.70 is: 72,750,162.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,720,512.15 : 118,313,025.30 = 52,709,168.70 : x
  2. Step 2: Convert to fraction form
    85,720,512.15/118,313,025.30 = 52,709,168.70/x
  3. Step 3: Cross multiply
    85,720,512.15x = 118,313,025.30 × 52,709,168.70
  4. Step 4: Simplify right side
    85,720,512.15x = 6,236,181,209,945,068
  5. Step 5: Solve for x
    x = 6,236,181,209,945,068/85,720,512.15
  6. Step 6: Final answer
    x = 72,750,162.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.