Home / 20,881,445.25-28,816,040.88-11,713,891.17

Finding the Fourth Proportional to 20,881,445.25, 28,816,040.88 and 11,713,891.17

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Solution

The fourth proportional to 20,881,445.25, 28,816,040.88 and 11,713,891.17 is: 16,164,971.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,445.25 : 28,816,040.88 = 11,713,891.17 : x
  2. Step 2: Convert to fraction form
    20,881,445.25/28,816,040.88 = 11,713,891.17/x
  3. Step 3: Cross multiply
    20,881,445.25x = 28,816,040.88 × 11,713,891.17
  4. Step 4: Simplify right side
    20,881,445.25x = 337,547,966,818,591
  5. Step 5: Solve for x
    x = 337,547,966,818,591/20,881,445.25
  6. Step 6: Final answer
    x = 16,164,971.47

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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.