Home / 1,000,392,451.92-1,380,549,689.51-554,363,265.56

Finding the Fourth Proportional to 1,000,392,451.92, 1,380,549,689.51 and 554,363,265.56

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Solution

The fourth proportional to 1,000,392,451.92, 1,380,549,689.51 and 554,363,265.56 is: 765,025,798.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,392,451.92 : 1,380,549,689.51 = 554,363,265.56 : x
  2. Step 2: Convert to fraction form
    1,000,392,451.92/1,380,549,689.51 = 554,363,265.56/x
  3. Step 3: Cross multiply
    1,000,392,451.92x = 1,380,549,689.51 × 554,363,265.56
  4. Step 4: Simplify right side
    1,000,392,451.92x = 765,326,034,134,933,120
  5. Step 5: Solve for x
    x = 765,326,034,134,933,120/1,000,392,451.92
  6. Step 6: Final answer
    x = 765,025,798.29

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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.