Home / 485,109,713.40-727,664,570.10-408,582,209.40

Finding the Fourth Proportional to 485,109,713.40, 727,664,570.10 and 408,582,209.40

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Solution

The fourth proportional to 485,109,713.40, 727,664,570.10 and 408,582,209.40 is: 612,873,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,109,713.40 : 727,664,570.10 = 408,582,209.40 : x
  2. Step 2: Convert to fraction form
    485,109,713.40/727,664,570.10 = 408,582,209.40/x
  3. Step 3: Cross multiply
    485,109,713.40x = 727,664,570.10 × 408,582,209.40
  4. Step 4: Simplify right side
    485,109,713.40x = 297,310,797,753,559,168
  5. Step 5: Solve for x
    x = 297,310,797,753,559,168/485,109,713.40
  6. Step 6: Final answer
    x = 612,873,314.10

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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.