Home / 1,038,982,020.56-1,558,435,229.88-311,951,840.72

Finding the Fourth Proportional to 1,038,982,020.56, 1,558,435,229.88 and 311,951,840.72

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Solution

The fourth proportional to 1,038,982,020.56, 1,558,435,229.88 and 311,951,840.72 is: 467,916,411.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,982,020.56 : 1,558,435,229.88 = 311,951,840.72 : x
  2. Step 2: Convert to fraction form
    1,038,982,020.56/1,558,435,229.88 = 311,951,840.72/x
  3. Step 3: Cross multiply
    1,038,982,020.56x = 1,558,435,229.88 × 311,951,840.72
  4. Step 4: Simplify right side
    1,038,982,020.56x = 486,156,738,603,962,432
  5. Step 5: Solve for x
    x = 486,156,738,603,962,432/1,038,982,020.56
  6. Step 6: Final answer
    x = 467,916,411.43

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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.