Home / 817,835,138.10-1,226,752,707.15-491,317,787.70

Finding the Fourth Proportional to 817,835,138.10, 1,226,752,707.15 and 491,317,787.70

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Solution

The fourth proportional to 817,835,138.10, 1,226,752,707.15 and 491,317,787.70 is: 736,976,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,835,138.10 : 1,226,752,707.15 = 491,317,787.70 : x
  2. Step 2: Convert to fraction form
    817,835,138.10/1,226,752,707.15 = 491,317,787.70/x
  3. Step 3: Cross multiply
    817,835,138.10x = 1,226,752,707.15 × 491,317,787.70
  4. Step 4: Simplify right side
    817,835,138.10x = 602,725,426,131,923,968
  5. Step 5: Solve for x
    x = 602,725,426,131,923,968/817,835,138.10
  6. Step 6: Final answer
    x = 736,976,681.55

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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.