Home / 287,472,004.30-431,208,006.45-114,863,466.70

Finding the Fourth Proportional to 287,472,004.30, 431,208,006.45 and 114,863,466.70

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Solution

The fourth proportional to 287,472,004.30, 431,208,006.45 and 114,863,466.70 is: 172,295,200.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,472,004.30 : 431,208,006.45 = 114,863,466.70 : x
  2. Step 2: Convert to fraction form
    287,472,004.30/431,208,006.45 = 114,863,466.70/x
  3. Step 3: Cross multiply
    287,472,004.30x = 431,208,006.45 × 114,863,466.70
  4. Step 4: Simplify right side
    287,472,004.30x = 49,530,046,489,642,960
  5. Step 5: Solve for x
    x = 49,530,046,489,642,960/287,472,004.30
  6. Step 6: Final answer
    x = 172,295,200.05

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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.