Home / 81,236,282.90-121,849,939.13-59,399,040.06

Finding the Fourth Proportional to 81,236,282.90, 121,849,939.13 and 59,399,040.06

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Solution

The fourth proportional to 81,236,282.90, 121,849,939.13 and 59,399,040.06 is: 89,095,280.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,236,282.90 : 121,849,939.13 = 59,399,040.06 : x
  2. Step 2: Convert to fraction form
    81,236,282.90/121,849,939.13 = 59,399,040.06/x
  3. Step 3: Cross multiply
    81,236,282.90x = 121,849,939.13 × 59,399,040.06
  4. Step 4: Simplify right side
    81,236,282.90x = 7,237,769,415,394,437
  5. Step 5: Solve for x
    x = 7,237,769,415,394,437/81,236,282.90
  6. Step 6: Final answer
    x = 89,095,280.55

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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.