Home / 885,346,356.38-1,221,336,680.64-527,862,012.72

Finding the Fourth Proportional to 885,346,356.38, 1,221,336,680.64 and 527,862,012.72

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Solution

The fourth proportional to 885,346,356.38, 1,221,336,680.64 and 527,862,012.72 is: 728,186,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,346,356.38 : 1,221,336,680.64 = 527,862,012.72 : x
  2. Step 2: Convert to fraction form
    885,346,356.38/1,221,336,680.64 = 527,862,012.72/x
  3. Step 3: Cross multiply
    885,346,356.38x = 1,221,336,680.64 × 527,862,012.72
  4. Step 4: Simplify right side
    885,346,356.38x = 644,697,238,451,394,304
  5. Step 5: Solve for x
    x = 644,697,238,451,394,304/885,346,356.38
  6. Step 6: Final answer
    x = 728,186,470.54

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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.