Home / 15,802,385.76-21,809,061-8,927,309.88

Finding the Fourth Proportional to 15,802,385.76, 21,809,061 and 8,927,309.88

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Solution

The fourth proportional to 15,802,385.76, 21,809,061 and 8,927,309.88 is: 12,320,686.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,802,385.76 : 21,809,061 = 8,927,309.88 : x
  2. Step 2: Convert to fraction form
    15,802,385.76/21,809,061 = 8,927,309.88/x
  3. Step 3: Cross multiply
    15,802,385.76x = 21,809,061 × 8,927,309.88
  4. Step 4: Simplify right side
    15,802,385.76x = 194,696,245,738,822.69
  5. Step 5: Solve for x
    x = 194,696,245,738,822.69/15,802,385.76
  6. Step 6: Final answer
    x = 12,320,686.81

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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.