Home / 15,287,402.17-21,095,982.45-8,318,108.40

Finding the Fourth Proportional to 15,287,402.17, 21,095,982.45 and 8,318,108.40

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Solution

The fourth proportional to 15,287,402.17, 21,095,982.45 and 8,318,108.40 is: 11,478,645.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287,402.17 : 21,095,982.45 = 8,318,108.40 : x
  2. Step 2: Convert to fraction form
    15,287,402.17/21,095,982.45 = 8,318,108.40/x
  3. Step 3: Cross multiply
    15,287,402.17x = 21,095,982.45 × 8,318,108.40
  4. Step 4: Simplify right side
    15,287,402.17x = 175,478,668,823,597.59
  5. Step 5: Solve for x
    x = 175,478,668,823,597.59/15,287,402.17
  6. Step 6: Final answer
    x = 11,478,645.41

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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.