Home / 660,147,019.30-990,220,528.95-591,272,265.70

Finding the Fourth Proportional to 660,147,019.30, 990,220,528.95 and 591,272,265.70

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Solution

The fourth proportional to 660,147,019.30, 990,220,528.95 and 591,272,265.70 is: 886,908,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,147,019.30 : 990,220,528.95 = 591,272,265.70 : x
  2. Step 2: Convert to fraction form
    660,147,019.30/990,220,528.95 = 591,272,265.70/x
  3. Step 3: Cross multiply
    660,147,019.30x = 990,220,528.95 × 591,272,265.70
  4. Step 4: Simplify right side
    660,147,019.30x = 585,489,935,694,919,040
  5. Step 5: Solve for x
    x = 585,489,935,694,919,040/660,147,019.30
  6. Step 6: Final answer
    x = 886,908,398.55

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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.