Home / 121,379,427.80-182,069,141.70-84,391,134.20

Finding the Fourth Proportional to 121,379,427.80, 182,069,141.70 and 84,391,134.20

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Solution

The fourth proportional to 121,379,427.80, 182,069,141.70 and 84,391,134.20 is: 126,586,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,379,427.80 : 182,069,141.70 = 84,391,134.20 : x
  2. Step 2: Convert to fraction form
    121,379,427.80/182,069,141.70 = 84,391,134.20/x
  3. Step 3: Cross multiply
    121,379,427.80x = 182,069,141.70 × 84,391,134.20
  4. Step 4: Simplify right side
    121,379,427.80x = 15,365,021,370,883,516
  5. Step 5: Solve for x
    x = 15,365,021,370,883,516/121,379,427.80
  6. Step 6: Final answer
    x = 126,586,701.30

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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.