Home / 139,968,191.60-209,952,287.40-49,079,970.80

Finding the Fourth Proportional to 139,968,191.60, 209,952,287.40 and 49,079,970.80

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Solution

The fourth proportional to 139,968,191.60, 209,952,287.40 and 49,079,970.80 is: 73,619,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,191.60 : 209,952,287.40 = 49,079,970.80 : x
  2. Step 2: Convert to fraction form
    139,968,191.60/209,952,287.40 = 49,079,970.80/x
  3. Step 3: Cross multiply
    139,968,191.60x = 209,952,287.40 × 49,079,970.80
  4. Step 4: Simplify right side
    139,968,191.60x = 10,304,452,134,985,208
  5. Step 5: Solve for x
    x = 10,304,452,134,985,208/139,968,191.60
  6. Step 6: Final answer
    x = 73,619,956.20

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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.