Home / 15,438,442.50-21,291,105.69-9,637,760.34

Finding the Fourth Proportional to 15,438,442.50, 21,291,105.69 and 9,637,760.34

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Solution

The fourth proportional to 15,438,442.50, 21,291,105.69 and 9,637,760.34 is: 13,291,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438,442.50 : 21,291,105.69 = 9,637,760.34 : x
  2. Step 2: Convert to fraction form
    15,438,442.50/21,291,105.69 = 9,637,760.34/x
  3. Step 3: Cross multiply
    15,438,442.50x = 21,291,105.69 × 9,637,760.34
  4. Step 4: Simplify right side
    15,438,442.50x = 205,198,574,013,830.34
  5. Step 5: Solve for x
    x = 205,198,574,013,830.34/15,438,442.50
  6. Step 6: Final answer
    x = 13,291,403.85

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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.