Home / 1,281,951,000.12-1,769,092,379.82-695,240,136.12

Finding the Fourth Proportional to 1,281,951,000.12, 1,769,092,379.82 and 695,240,136.12

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Solution

The fourth proportional to 1,281,951,000.12, 1,769,092,379.82 and 695,240,136.12 is: 959,431,387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,951,000.12 : 1,769,092,379.82 = 695,240,136.12 : x
  2. Step 2: Convert to fraction form
    1,281,951,000.12/1,769,092,379.82 = 695,240,136.12/x
  3. Step 3: Cross multiply
    1,281,951,000.12x = 1,769,092,379.82 × 695,240,136.12
  4. Step 4: Simplify right side
    1,281,951,000.12x = 1,229,944,026,954,911,488
  5. Step 5: Solve for x
    x = 1,229,944,026,954,911,488/1,281,951,000.12
  6. Step 6: Final answer
    x = 959,431,387.66

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.