Home / 21,720,752.96-29,972,891.04-12,553,989.44

Finding the Fourth Proportional to 21,720,752.96, 29,972,891.04 and 12,553,989.44

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Solution

The fourth proportional to 21,720,752.96, 29,972,891.04 and 12,553,989.44 is: 17,323,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720,752.96 : 29,972,891.04 = 12,553,989.44 : x
  2. Step 2: Convert to fraction form
    21,720,752.96/29,972,891.04 = 12,553,989.44/x
  3. Step 3: Cross multiply
    21,720,752.96x = 29,972,891.04 × 12,553,989.44
  4. Step 4: Simplify right side
    21,720,752.96x = 376,279,357,602,430.56
  5. Step 5: Solve for x
    x = 376,279,357,602,430.56/21,720,752.96
  6. Step 6: Final answer
    x = 17,323,495.11

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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.