Home / 10,478,428.30-15,717,642.45-9,982,416.70

Finding the Fourth Proportional to 10,478,428.30, 15,717,642.45 and 9,982,416.70

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Solution

The fourth proportional to 10,478,428.30, 15,717,642.45 and 9,982,416.70 is: 14,973,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478,428.30 : 15,717,642.45 = 9,982,416.70 : x
  2. Step 2: Convert to fraction form
    10,478,428.30/15,717,642.45 = 9,982,416.70/x
  3. Step 3: Cross multiply
    10,478,428.30x = 15,717,642.45 × 9,982,416.70
  4. Step 4: Simplify right side
    10,478,428.30x = 156,900,056,477,508.91
  5. Step 5: Solve for x
    x = 156,900,056,477,508.91/10,478,428.30
  6. Step 6: Final answer
    x = 14,973,625.05

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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.