Home / 1,120,129,133.70-1,680,193,700.55-1,009,164,252.90

Finding the Fourth Proportional to 1,120,129,133.70, 1,680,193,700.55 and 1,009,164,252.90

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Solution

The fourth proportional to 1,120,129,133.70, 1,680,193,700.55 and 1,009,164,252.90 is: 1,513,746,379.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,129,133.70 : 1,680,193,700.55 = 1,009,164,252.90 : x
  2. Step 2: Convert to fraction form
    1,120,129,133.70/1,680,193,700.55 = 1,009,164,252.90/x
  3. Step 3: Cross multiply
    1,120,129,133.70x = 1,680,193,700.55 × 1,009,164,252.90
  4. Step 4: Simplify right side
    1,120,129,133.70x = 1,695,591,420,542,827,008
  5. Step 5: Solve for x
    x = 1,695,591,420,542,827,008/1,120,129,133.70
  6. Step 6: Final answer
    x = 1,513,746,379.35

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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.