Home / 999,015,812.12-1,498,007,382.06-438,548,248.28

Finding the Fourth Proportional to 999,015,812.12, 1,498,007,382.06 and 438,548,248.28

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Solution

The fourth proportional to 999,015,812.12, 1,498,007,382.06 and 438,548,248.28 is: 657,595,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,015,812.12 : 1,498,007,382.06 = 438,548,248.28 : x
  2. Step 2: Convert to fraction form
    999,015,812.12/1,498,007,382.06 = 438,548,248.28/x
  3. Step 3: Cross multiply
    999,015,812.12x = 1,498,007,382.06 × 438,548,248.28
  4. Step 4: Simplify right side
    999,015,812.12x = 656,948,513,312,267,008
  5. Step 5: Solve for x
    x = 656,948,513,312,267,008/999,015,812.12
  6. Step 6: Final answer
    x = 657,595,711.04

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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.