Home / 10,502,440.90-15,753,661.35-8,878,812.10

Finding the Fourth Proportional to 10,502,440.90, 15,753,661.35 and 8,878,812.10

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Solution

The fourth proportional to 10,502,440.90, 15,753,661.35 and 8,878,812.10 is: 13,318,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,440.90 : 15,753,661.35 = 8,878,812.10 : x
  2. Step 2: Convert to fraction form
    10,502,440.90/15,753,661.35 = 8,878,812.10/x
  3. Step 3: Cross multiply
    10,502,440.90x = 15,753,661.35 × 8,878,812.10
  4. Step 4: Simplify right side
    10,502,440.90x = 139,873,799,013,682.33
  5. Step 5: Solve for x
    x = 139,873,799,013,682.33/10,502,440.90
  6. Step 6: Final answer
    x = 13,318,218.15

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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.