Home / 287,472,001.80-431,208,002.70-114,863,464.20

Finding the Fourth Proportional to 287,472,001.80, 431,208,002.70 and 114,863,464.20

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Solution

The fourth proportional to 287,472,001.80, 431,208,002.70 and 114,863,464.20 is: 172,295,196.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,472,001.80 : 431,208,002.70 = 114,863,464.20 : x
  2. Step 2: Convert to fraction form
    287,472,001.80/431,208,002.70 = 114,863,464.20/x
  3. Step 3: Cross multiply
    287,472,001.80x = 431,208,002.70 × 114,863,464.20
  4. Step 4: Simplify right side
    287,472,001.80x = 49,530,044,980,884,952
  5. Step 5: Solve for x
    x = 49,530,044,980,884,952/287,472,001.80
  6. Step 6: Final answer
    x = 172,295,196.30

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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.