Home / 485,838,171.36-670,440,000.96-277,061,508.90

Finding the Fourth Proportional to 485,838,171.36, 670,440,000.96 and 277,061,508.90

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Solution

The fourth proportional to 485,838,171.36, 670,440,000.96 and 277,061,508.90 is: 382,335,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,838,171.36 : 670,440,000.96 = 277,061,508.90 : x
  2. Step 2: Convert to fraction form
    485,838,171.36/670,440,000.96 = 277,061,508.90/x
  3. Step 3: Cross multiply
    485,838,171.36x = 670,440,000.96 × 277,061,508.90
  4. Step 4: Simplify right side
    485,838,171.36x = 185,753,118,292,895,040
  5. Step 5: Solve for x
    x = 185,753,118,292,895,040/485,838,171.36
  6. Step 6: Final answer
    x = 382,335,372.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.