Home / 16,638,691.20-24,958,036.80-7,680,739.20

Finding the Fourth Proportional to 16,638,691.20, 24,958,036.80 and 7,680,739.20

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Solution

The fourth proportional to 16,638,691.20, 24,958,036.80 and 7,680,739.20 is: 11,521,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638,691.20 : 24,958,036.80 = 7,680,739.20 : x
  2. Step 2: Convert to fraction form
    16,638,691.20/24,958,036.80 = 7,680,739.20/x
  3. Step 3: Cross multiply
    16,638,691.20x = 24,958,036.80 × 7,680,739.20
  4. Step 4: Simplify right side
    16,638,691.20x = 191,696,171,604,802.56
  5. Step 5: Solve for x
    x = 191,696,171,604,802.56/16,638,691.20
  6. Step 6: Final answer
    x = 11,521,108.80

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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.