Home / 287,496,008.30-431,244,012.45-134,441,000.30

Finding the Fourth Proportional to 287,496,008.30, 431,244,012.45 and 134,441,000.30

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Solution

The fourth proportional to 287,496,008.30, 431,244,012.45 and 134,441,000.30 is: 201,661,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,496,008.30 : 431,244,012.45 = 134,441,000.30 : x
  2. Step 2: Convert to fraction form
    287,496,008.30/431,244,012.45 = 134,441,000.30/x
  3. Step 3: Cross multiply
    287,496,008.30x = 431,244,012.45 × 134,441,000.30
  4. Step 4: Simplify right side
    287,496,008.30x = 57,976,876,407,163,656
  5. Step 5: Solve for x
    x = 57,976,876,407,163,656/287,496,008.30
  6. Step 6: Final answer
    x = 201,661,500.45

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Double scale
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Similar ratio
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1.5x scale

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.