Home / 25,337,647.13-38,009,460.04-18,988,255.78

Finding the Fourth Proportional to 25,337,647.13, 38,009,460.04 and 18,988,255.78

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Solution

The fourth proportional to 25,337,647.13, 38,009,460.04 and 18,988,255.78 is: 28,484,623.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,337,647.13 : 38,009,460.04 = 18,988,255.78 : x
  2. Step 2: Convert to fraction form
    25,337,647.13/38,009,460.04 = 18,988,255.78/x
  3. Step 3: Cross multiply
    25,337,647.13x = 38,009,460.04 × 18,988,255.78
  4. Step 4: Simplify right side
    25,337,647.13x = 721,733,349,156,714.75
  5. Step 5: Solve for x
    x = 721,733,349,156,714.75/25,337,647.13
  6. Step 6: Final answer
    x = 28,484,623.91

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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.