Home / 91,862,407.80-137,793,611.70-45,945,905.40

Finding the Fourth Proportional to 91,862,407.80, 137,793,611.70 and 45,945,905.40

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Solution

The fourth proportional to 91,862,407.80, 137,793,611.70 and 45,945,905.40 is: 68,918,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,862,407.80 : 137,793,611.70 = 45,945,905.40 : x
  2. Step 2: Convert to fraction form
    91,862,407.80/137,793,611.70 = 45,945,905.40/x
  3. Step 3: Cross multiply
    91,862,407.80x = 137,793,611.70 × 45,945,905.40
  4. Step 4: Simplify right side
    91,862,407.80x = 6,331,052,247,892,532
  5. Step 5: Solve for x
    x = 6,331,052,247,892,532/91,862,407.80
  6. Step 6: Final answer
    x = 68,918,858.10

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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.