Home / 518,325,781.40-777,488,672.10-484,313,557.40

Finding the Fourth Proportional to 518,325,781.40, 777,488,672.10 and 484,313,557.40

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Solution

The fourth proportional to 518,325,781.40, 777,488,672.10 and 484,313,557.40 is: 726,470,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,325,781.40 : 777,488,672.10 = 484,313,557.40 : x
  2. Step 2: Convert to fraction form
    518,325,781.40/777,488,672.10 = 484,313,557.40/x
  3. Step 3: Cross multiply
    518,325,781.40x = 777,488,672.10 × 484,313,557.40
  4. Step 4: Simplify right side
    518,325,781.40x = 376,548,304,622,953,152
  5. Step 5: Solve for x
    x = 376,548,304,622,953,152/518,325,781.40
  6. Step 6: Final answer
    x = 726,470,336.10

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Similar ratio
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1.5x scale

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.