Home / 91,039,688.20-136,559,532.30-60,428,686.60

Finding the Fourth Proportional to 91,039,688.20, 136,559,532.30 and 60,428,686.60

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Solution

The fourth proportional to 91,039,688.20, 136,559,532.30 and 60,428,686.60 is: 90,643,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,039,688.20 : 136,559,532.30 = 60,428,686.60 : x
  2. Step 2: Convert to fraction form
    91,039,688.20/136,559,532.30 = 60,428,686.60/x
  3. Step 3: Cross multiply
    91,039,688.20x = 136,559,532.30 × 60,428,686.60
  4. Step 4: Simplify right side
    91,039,688.20x = 8,252,113,179,599,278
  5. Step 5: Solve for x
    x = 8,252,113,179,599,278/91,039,688.20
  6. Step 6: Final answer
    x = 90,643,029.90

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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.