Home / 72,808,714.11-100,475,913.17-39,768,963.59

Finding the Fourth Proportional to 72,808,714.11, 100,475,913.17 and 39,768,963.59

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Solution

The fourth proportional to 72,808,714.11, 100,475,913.17 and 39,768,963.59 is: 54,881,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,808,714.11 : 100,475,913.17 = 39,768,963.59 : x
  2. Step 2: Convert to fraction form
    72,808,714.11/100,475,913.17 = 39,768,963.59/x
  3. Step 3: Cross multiply
    72,808,714.11x = 100,475,913.17 × 39,768,963.59
  4. Step 4: Simplify right side
    72,808,714.11x = 3,995,822,932,880,344
  5. Step 5: Solve for x
    x = 3,995,822,932,880,344/72,808,714.11
  6. Step 6: Final answer
    x = 54,881,108.42

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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.