Home / 91,494,207.60-137,241,311.40-78,739,623.60

Finding the Fourth Proportional to 91,494,207.60, 137,241,311.40 and 78,739,623.60

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Solution

The fourth proportional to 91,494,207.60, 137,241,311.40 and 78,739,623.60 is: 118,109,435.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,494,207.60 : 137,241,311.40 = 78,739,623.60 : x
  2. Step 2: Convert to fraction form
    91,494,207.60/137,241,311.40 = 78,739,623.60/x
  3. Step 3: Cross multiply
    91,494,207.60x = 137,241,311.40 × 78,739,623.60
  4. Step 4: Simplify right side
    91,494,207.60x = 10,806,329,202,006,388
  5. Step 5: Solve for x
    x = 10,806,329,202,006,388/91,494,207.60
  6. Step 6: Final answer
    x = 118,109,435.40

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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.