Home / 133,035,019.70-199,552,529.55-78,615,461.30

Finding the Fourth Proportional to 133,035,019.70, 199,552,529.55 and 78,615,461.30

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Solution

The fourth proportional to 133,035,019.70, 199,552,529.55 and 78,615,461.30 is: 117,923,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,035,019.70 : 199,552,529.55 = 78,615,461.30 : x
  2. Step 2: Convert to fraction form
    133,035,019.70/199,552,529.55 = 78,615,461.30/x
  3. Step 3: Cross multiply
    133,035,019.70x = 199,552,529.55 × 78,615,461.30
  4. Step 4: Simplify right side
    133,035,019.70x = 15,687,914,164,155,132
  5. Step 5: Solve for x
    x = 15,687,914,164,155,132/133,035,019.70
  6. Step 6: Final answer
    x = 117,923,191.95

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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.