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Finding the Fourth Proportional to 1,000,392,454.92, 1,380,549,693.65 and 554,363,268.56

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Solution

The fourth proportional to 1,000,392,454.92, 1,380,549,693.65 and 554,363,268.56 is: 765,025,802.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,392,454.92 : 1,380,549,693.65 = 554,363,268.56 : x
  2. Step 2: Convert to fraction form
    1,000,392,454.92/1,380,549,693.65 = 554,363,268.56/x
  3. Step 3: Cross multiply
    1,000,392,454.92x = 1,380,549,693.65 × 554,363,268.56
  4. Step 4: Simplify right side
    1,000,392,454.92x = 765,326,040,571,646,080
  5. Step 5: Solve for x
    x = 765,326,040,571,646,080/1,000,392,454.92
  6. Step 6: Final answer
    x = 765,025,802.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.