Home / 91,020,997.20-125,643,133.52-59,661,066.60

Finding the Fourth Proportional to 91,020,997.20, 125,643,133.52 and 59,661,066.60

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Solution

The fourth proportional to 91,020,997.20, 125,643,133.52 and 59,661,066.60 is: 82,354,660.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,020,997.20 : 125,643,133.52 = 59,661,066.60 : x
  2. Step 2: Convert to fraction form
    91,020,997.20/125,643,133.52 = 59,661,066.60/x
  3. Step 3: Cross multiply
    91,020,997.20x = 125,643,133.52 × 59,661,066.60
  4. Step 4: Simplify right side
    91,020,997.20x = 7,496,003,356,769,412
  5. Step 5: Solve for x
    x = 7,496,003,356,769,412/91,020,997.20
  6. Step 6: Final answer
    x = 82,354,660.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.