Home / 440,577,999.20-660,866,998.80-210,995,487.20

Finding the Fourth Proportional to 440,577,999.20, 660,866,998.80 and 210,995,487.20

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Solution

The fourth proportional to 440,577,999.20, 660,866,998.80 and 210,995,487.20 is: 316,493,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,577,999.20 : 660,866,998.80 = 210,995,487.20 : x
  2. Step 2: Convert to fraction form
    440,577,999.20/660,866,998.80 = 210,995,487.20/x
  3. Step 3: Cross multiply
    440,577,999.20x = 660,866,998.80 × 210,995,487.20
  4. Step 4: Simplify right side
    440,577,999.20x = 139,439,954,386,207,792
  5. Step 5: Solve for x
    x = 139,439,954,386,207,792/440,577,999.20
  6. Step 6: Final answer
    x = 316,493,230.80

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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.