Home / 487,365,995.61-730,977,208.65-159,876,115.47

Finding the Fourth Proportional to 487,365,995.61, 730,977,208.65 and 159,876,115.47

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Solution

The fourth proportional to 487,365,995.61, 730,977,208.65 and 159,876,115.47 is: 239,790,624.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,365,995.61 : 730,977,208.65 = 159,876,115.47 : x
  2. Step 2: Convert to fraction form
    487,365,995.61/730,977,208.65 = 159,876,115.47/x
  3. Step 3: Cross multiply
    487,365,995.61x = 730,977,208.65 × 159,876,115.47
  4. Step 4: Simplify right side
    487,365,995.61x = 116,865,796,616,065,680
  5. Step 5: Solve for x
    x = 116,865,796,616,065,680/487,365,995.61
  6. Step 6: Final answer
    x = 239,790,624.85

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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.