Home / 15,406,689.87-21,260,971.62-8,531,024.31

Finding the Fourth Proportional to 15,406,689.87, 21,260,971.62 and 8,531,024.31

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Solution

The fourth proportional to 15,406,689.87, 21,260,971.62 and 8,531,024.31 is: 11,772,669.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,689.87 : 21,260,971.62 = 8,531,024.31 : x
  2. Step 2: Convert to fraction form
    15,406,689.87/21,260,971.62 = 8,531,024.31/x
  3. Step 3: Cross multiply
    15,406,689.87x = 21,260,971.62 × 8,531,024.31
  4. Step 4: Simplify right side
    15,406,689.87x = 181,377,865,744,440.09
  5. Step 5: Solve for x
    x = 181,377,865,744,440.09/15,406,689.87
  6. Step 6: Final answer
    x = 11,772,669.36

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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.