Home / 15,636,717.09-21,578,655.15-8,761,248.36

Finding the Fourth Proportional to 15,636,717.09, 21,578,655.15 and 8,761,248.36

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Solution

The fourth proportional to 15,636,717.09, 21,578,655.15 and 8,761,248.36 is: 12,090,514.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636,717.09 : 21,578,655.15 = 8,761,248.36 : x
  2. Step 2: Convert to fraction form
    15,636,717.09/21,578,655.15 = 8,761,248.36/x
  3. Step 3: Cross multiply
    15,636,717.09x = 21,578,655.15 × 8,761,248.36
  4. Step 4: Simplify right side
    15,636,717.09x = 189,055,957,043,943.03
  5. Step 5: Solve for x
    x = 189,055,957,043,943.03/15,636,717.09
  6. Step 6: Final answer
    x = 12,090,514.65

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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.