Home / 139,971,003.20-209,956,504.80-99,156,334.40

Finding the Fourth Proportional to 139,971,003.20, 209,956,504.80 and 99,156,334.40

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Solution

The fourth proportional to 139,971,003.20, 209,956,504.80 and 99,156,334.40 is: 148,734,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,971,003.20 : 209,956,504.80 = 99,156,334.40 : x
  2. Step 2: Convert to fraction form
    139,971,003.20/209,956,504.80 = 99,156,334.40/x
  3. Step 3: Cross multiply
    139,971,003.20x = 209,956,504.80 × 99,156,334.40
  4. Step 4: Simplify right side
    139,971,003.20x = 20,818,517,399,404,008
  5. Step 5: Solve for x
    x = 20,818,517,399,404,008/139,971,003.20
  6. Step 6: Final answer
    x = 148,734,501.60

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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.