Home / 1,055,247,131.07-1,582,884,167.31-278,886,084.39

Finding the Fourth Proportional to 1,055,247,131.07, 1,582,884,167.31 and 278,886,084.39

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Solution

The fourth proportional to 1,055,247,131.07, 1,582,884,167.31 and 278,886,084.39 is: 418,332,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,247,131.07 : 1,582,884,167.31 = 278,886,084.39 : x
  2. Step 2: Convert to fraction form
    1,055,247,131.07/1,582,884,167.31 = 278,886,084.39/x
  3. Step 3: Cross multiply
    1,055,247,131.07x = 1,582,884,167.31 × 278,886,084.39
  4. Step 4: Simplify right side
    1,055,247,131.07x = 441,444,367,464,011,520
  5. Step 5: Solve for x
    x = 441,444,367,464,011,520/1,055,247,131.07
  6. Step 6: Final answer
    x = 418,332,686.69

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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.