Home / 10,478,442.80-15,717,664.20-9,982,431.20

Finding the Fourth Proportional to 10,478,442.80, 15,717,664.20 and 9,982,431.20

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Solution

The fourth proportional to 10,478,442.80, 15,717,664.20 and 9,982,431.20 is: 14,973,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478,442.80 : 15,717,664.20 = 9,982,431.20 : x
  2. Step 2: Convert to fraction form
    10,478,442.80/15,717,664.20 = 9,982,431.20/x
  3. Step 3: Cross multiply
    10,478,442.80x = 15,717,664.20 × 9,982,431.20
  4. Step 4: Simplify right side
    10,478,442.80x = 156,900,501,501,203.03
  5. Step 5: Solve for x
    x = 156,900,501,501,203.03/10,478,442.80
  6. Step 6: Final answer
    x = 14,973,646.80

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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.