Home / 15,558,457.80-23,319,024.30-7,981,523.40

Finding the Fourth Proportional to 15,558,457.80, 23,319,024.30 and 7,981,523.40

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Solution

The fourth proportional to 15,558,457.80, 23,319,024.30 and 7,981,523.40 is: 11,962,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558,457.80 : 23,319,024.30 = 7,981,523.40 : x
  2. Step 2: Convert to fraction form
    15,558,457.80/23,319,024.30 = 7,981,523.40/x
  3. Step 3: Cross multiply
    15,558,457.80x = 23,319,024.30 × 7,981,523.40
  4. Step 4: Simplify right side
    15,558,457.80x = 186,121,338,115,618.62
  5. Step 5: Solve for x
    x = 186,121,338,115,618.62/15,558,457.80
  6. Step 6: Final answer
    x = 11,962,711.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.