Home / 1,211,151,423.31-1,816,727,132.90-291,027,761.93

Finding the Fourth Proportional to 1,211,151,423.31, 1,816,727,132.90 and 291,027,761.93

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Solution

The fourth proportional to 1,211,151,423.31, 1,816,727,132.90 and 291,027,761.93 is: 436,541,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,151,423.31 : 1,816,727,132.90 = 291,027,761.93 : x
  2. Step 2: Convert to fraction form
    1,211,151,423.31/1,816,727,132.90 = 291,027,761.93/x
  3. Step 3: Cross multiply
    1,211,151,423.31x = 1,816,727,132.90 × 291,027,761.93
  4. Step 4: Simplify right side
    1,211,151,423.31x = 528,718,031,530,662,016
  5. Step 5: Solve for x
    x = 528,718,031,530,662,016/1,211,151,423.31
  6. Step 6: Final answer
    x = 436,541,642.40

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Double scale
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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.