Home / 438,449,151.20-657,477,159.21-261,269,854.65

Finding the Fourth Proportional to 438,449,151.20, 657,477,159.21 and 261,269,854.65

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Solution

The fourth proportional to 438,449,151.20, 657,477,159.21 and 261,269,854.65 is: 391,787,648.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,449,151.20 : 657,477,159.21 = 261,269,854.65 : x
  2. Step 2: Convert to fraction form
    438,449,151.20/657,477,159.21 = 261,269,854.65/x
  3. Step 3: Cross multiply
    438,449,151.20x = 657,477,159.21 × 261,269,854.65
  4. Step 4: Simplify right side
    438,449,151.20x = 171,778,961,822,491,616
  5. Step 5: Solve for x
    x = 171,778,961,822,491,616/438,449,151.20
  6. Step 6: Final answer
    x = 391,787,648.25

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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.