Home / 71,720,407.33-98,966,530.72-40,357,909.70

Finding the Fourth Proportional to 71,720,407.33, 98,966,530.72 and 40,357,909.70

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Solution

The fourth proportional to 71,720,407.33, 98,966,530.72 and 40,357,909.70 is: 55,689,621.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,720,407.33 : 98,966,530.72 = 40,357,909.70 : x
  2. Step 2: Convert to fraction form
    71,720,407.33/98,966,530.72 = 40,357,909.70/x
  3. Step 3: Cross multiply
    71,720,407.33x = 98,966,530.72 × 40,357,909.70
  4. Step 4: Simplify right side
    71,720,407.33x = 3,994,082,310,046,775
  5. Step 5: Solve for x
    x = 3,994,082,310,046,775/71,720,407.33
  6. Step 6: Final answer
    x = 55,689,621.11

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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.