Home / 660,146,959.80-990,220,439.70-591,272,206.20

Finding the Fourth Proportional to 660,146,959.80, 990,220,439.70 and 591,272,206.20

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Solution

The fourth proportional to 660,146,959.80, 990,220,439.70 and 591,272,206.20 is: 886,908,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,146,959.80 : 990,220,439.70 = 591,272,206.20 : x
  2. Step 2: Convert to fraction form
    660,146,959.80/990,220,439.70 = 591,272,206.20/x
  3. Step 3: Cross multiply
    660,146,959.80x = 990,220,439.70 × 591,272,206.20
  4. Step 4: Simplify right side
    660,146,959.80x = 585,489,824,005,753,088
  5. Step 5: Solve for x
    x = 585,489,824,005,753,088/660,146,959.80
  6. Step 6: Final answer
    x = 886,908,309.30

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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.