Home / 385,372,007.20-577,890,049.20-155,264,615.20

Finding the Fourth Proportional to 385,372,007.20, 577,890,049.20 and 155,264,615.20

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Solution

The fourth proportional to 385,372,007.20, 577,890,049.20 and 155,264,615.20 is: 232,829,251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,372,007.20 : 577,890,049.20 = 155,264,615.20 : x
  2. Step 2: Convert to fraction form
    385,372,007.20/577,890,049.20 = 155,264,615.20/x
  3. Step 3: Cross multiply
    385,372,007.20x = 577,890,049.20 × 155,264,615.20
  4. Step 4: Simplify right side
    385,372,007.20x = 89,725,876,116,947,072
  5. Step 5: Solve for x
    x = 89,725,876,116,947,072/385,372,007.20
  6. Step 6: Final answer
    x = 232,829,251.84

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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.