Home / 1,189,891,712.30-1,784,837,568.45-724,302,157.10

Finding the Fourth Proportional to 1,189,891,712.30, 1,784,837,568.45 and 724,302,157.10

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Solution

The fourth proportional to 1,189,891,712.30, 1,784,837,568.45 and 724,302,157.10 is: 1,086,453,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,891,712.30 : 1,784,837,568.45 = 724,302,157.10 : x
  2. Step 2: Convert to fraction form
    1,189,891,712.30/1,784,837,568.45 = 724,302,157.10/x
  3. Step 3: Cross multiply
    1,189,891,712.30x = 1,784,837,568.45 × 724,302,157.10
  4. Step 4: Simplify right side
    1,189,891,712.30x = 1,292,761,700,901,454,080
  5. Step 5: Solve for x
    x = 1,292,761,700,901,454,080/1,189,891,712.30
  6. Step 6: Final answer
    x = 1,086,453,235.65

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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.