Home / 425,498,335.98-638,441,432.28-218,382,192.38

Finding the Fourth Proportional to 425,498,335.98, 638,441,432.28 and 218,382,192.38

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Solution

The fourth proportional to 425,498,335.98, 638,441,432.28 and 218,382,192.38 is: 327,672,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,498,335.98 : 638,441,432.28 = 218,382,192.38 : x
  2. Step 2: Convert to fraction form
    425,498,335.98/638,441,432.28 = 218,382,192.38/x
  3. Step 3: Cross multiply
    425,498,335.98x = 638,441,432.28 × 218,382,192.38
  4. Step 4: Simplify right side
    425,498,335.98x = 139,424,239,684,341,488
  5. Step 5: Solve for x
    x = 139,424,239,684,341,488/425,498,335.98
  6. Step 6: Final answer
    x = 327,672,820.07

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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.