Home / 261,361,290.60-392,041,935.90-220,546,621.80

Finding the Fourth Proportional to 261,361,290.60, 392,041,935.90 and 220,546,621.80

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Solution

The fourth proportional to 261,361,290.60, 392,041,935.90 and 220,546,621.80 is: 330,819,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,361,290.60 : 392,041,935.90 = 220,546,621.80 : x
  2. Step 2: Convert to fraction form
    261,361,290.60/392,041,935.90 = 220,546,621.80/x
  3. Step 3: Cross multiply
    261,361,290.60x = 392,041,935.90 × 220,546,621.80
  4. Step 4: Simplify right side
    261,361,290.60x = 86,463,524,566,677,136
  5. Step 5: Solve for x
    x = 86,463,524,566,677,136/261,361,290.60
  6. Step 6: Final answer
    x = 330,819,932.70

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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.