Home / 91,807,315.80-137,710,973.70-86,546,049.90

Finding the Fourth Proportional to 91,807,315.80, 137,710,973.70 and 86,546,049.90

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Solution

The fourth proportional to 91,807,315.80, 137,710,973.70 and 86,546,049.90 is: 129,819,074.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,807,315.80 : 137,710,973.70 = 86,546,049.90 : x
  2. Step 2: Convert to fraction form
    91,807,315.80/137,710,973.70 = 86,546,049.90/x
  3. Step 3: Cross multiply
    91,807,315.80x = 137,710,973.70 × 86,546,049.90
  4. Step 4: Simplify right side
    91,807,315.80x = 11,918,340,801,617,788
  5. Step 5: Solve for x
    x = 11,918,340,801,617,788/91,807,315.80
  6. Step 6: Final answer
    x = 129,819,074.85

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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.