Home / 385,230,538.97-577,839,045.60-266,946,221.15

Finding the Fourth Proportional to 385,230,538.97, 577,839,045.60 and 266,946,221.15

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Solution

The fourth proportional to 385,230,538.97, 577,839,045.60 and 266,946,221.15 is: 400,414,645.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,230,538.97 : 577,839,045.60 = 266,946,221.15 : x
  2. Step 2: Convert to fraction form
    385,230,538.97/577,839,045.60 = 266,946,221.15/x
  3. Step 3: Cross multiply
    385,230,538.97x = 577,839,045.60 × 266,946,221.15
  4. Step 4: Simplify right side
    385,230,538.97x = 154,251,949,652,953,344
  5. Step 5: Solve for x
    x = 154,251,949,652,953,344/385,230,538.97
  6. Step 6: Final answer
    x = 400,414,645.39

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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.