Home / 385,121,561.76-577,958,159.88-163,947,967.20

Finding the Fourth Proportional to 385,121,561.76, 577,958,159.88 and 163,947,967.20

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Solution

The fourth proportional to 385,121,561.76, 577,958,159.88 and 163,947,967.20 is: 246,039,367.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,121,561.76 : 577,958,159.88 = 163,947,967.20 : x
  2. Step 2: Convert to fraction form
    385,121,561.76/577,958,159.88 = 163,947,967.20/x
  3. Step 3: Cross multiply
    385,121,561.76x = 577,958,159.88 × 163,947,967.20
  4. Step 4: Simplify right side
    385,121,561.76x = 94,755,065,438,978,592
  5. Step 5: Solve for x
    x = 94,755,065,438,978,592/385,121,561.76
  6. Step 6: Final answer
    x = 246,039,367.43

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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.