Home / 381,888,050.70-572,832,076.05-139,724,748.30

Finding the Fourth Proportional to 381,888,050.70, 572,832,076.05 and 139,724,748.30

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Solution

The fourth proportional to 381,888,050.70, 572,832,076.05 and 139,724,748.30 is: 209,587,122.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,888,050.70 : 572,832,076.05 = 139,724,748.30 : x
  2. Step 2: Convert to fraction form
    381,888,050.70/572,832,076.05 = 139,724,748.30/x
  3. Step 3: Cross multiply
    381,888,050.70x = 572,832,076.05 × 139,724,748.30
  4. Step 4: Simplify right side
    381,888,050.70x = 80,038,817,644,252,704
  5. Step 5: Solve for x
    x = 80,038,817,644,252,704/381,888,050.70
  6. Step 6: Final answer
    x = 209,587,122.45

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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.