Home / 1,119,306,989.34-1,679,175,682.38-429,160,414.86

Finding the Fourth Proportional to 1,119,306,989.34, 1,679,175,682.38 and 429,160,414.86

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Solution

The fourth proportional to 1,119,306,989.34, 1,679,175,682.38 and 429,160,414.86 is: 643,823,132.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,306,989.34 : 1,679,175,682.38 = 429,160,414.86 : x
  2. Step 2: Convert to fraction form
    1,119,306,989.34/1,679,175,682.38 = 429,160,414.86/x
  3. Step 3: Cross multiply
    1,119,306,989.34x = 1,679,175,682.38 × 429,160,414.86
  4. Step 4: Simplify right side
    1,119,306,989.34x = 720,635,732,473,024,512
  5. Step 5: Solve for x
    x = 720,635,732,473,024,512/1,119,306,989.34
  6. Step 6: Final answer
    x = 643,823,132.83

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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.