Home / 130,836,613.16-180,555,720.27-72,101,385.70

Finding the Fourth Proportional to 130,836,613.16, 180,555,720.27 and 72,101,385.70

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Solution

The fourth proportional to 130,836,613.16, 180,555,720.27 and 72,101,385.70 is: 99,500,570.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,836,613.16 : 180,555,720.27 = 72,101,385.70 : x
  2. Step 2: Convert to fraction form
    130,836,613.16/180,555,720.27 = 72,101,385.70/x
  3. Step 3: Cross multiply
    130,836,613.16x = 180,555,720.27 × 72,101,385.70
  4. Step 4: Simplify right side
    130,836,613.16x = 13,018,317,626,806,810
  5. Step 5: Solve for x
    x = 13,018,317,626,806,810/130,836,613.16
  6. Step 6: Final answer
    x = 99,500,570.31

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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.