Home / 12,127,680,909.10-18,191,521,363.65-5,913,647,584.30

Finding the Fourth Proportional to 12,127,680,909.10, 18,191,521,363.65 and 5,913,647,584.30

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Solution

The fourth proportional to 12,127,680,909.10, 18,191,521,363.65 and 5,913,647,584.30 is: 8,870,471,376.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,680,909.10 : 18,191,521,363.65 = 5,913,647,584.30 : x
  2. Step 2: Convert to fraction form
    12,127,680,909.10/18,191,521,363.65 = 5,913,647,584.30/x
  3. Step 3: Cross multiply
    12,127,680,909.10x = 18,191,521,363.65 × 5,913,647,584.30
  4. Step 4: Simplify right side
    12,127,680,909.10x = 107,578,246,366,890,672,128
  5. Step 5: Solve for x
    x = 107,578,246,366,890,672,128/12,127,680,909.10
  6. Step 6: Final answer
    x = 8,870,471,376.45

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Double scale
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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.