Home / 305,231,963,454.72-457,897,679,000.64-90,122,250,041.28

Finding the Fourth Proportional to 305,231,963,454.72, 457,897,679,000.64 and 90,122,250,041.28

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Solution

The fourth proportional to 305,231,963,454.72, 457,897,679,000.64 and 90,122,250,041.28 is: 135,198,059,381.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,231,963,454.72 : 457,897,679,000.64 = 90,122,250,041.28 : x
  2. Step 2: Convert to fraction form
    305,231,963,454.72/457,897,679,000.64 = 90,122,250,041.28/x
  3. Step 3: Cross multiply
    305,231,963,454.72x = 457,897,679,000.64 × 90,122,250,041.28
  4. Step 4: Simplify right side
    305,231,963,454.72x = 41,266,769,120,217,446,481,920
  5. Step 5: Solve for x
    x = 41,266,769,120,217,446,481,920/305,231,963,454.72
  6. Step 6: Final answer
    x = 135,198,059,381.29

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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.