Home / 121,379,141.80-182,068,712.70-84,390,848.20

Finding the Fourth Proportional to 121,379,141.80, 182,068,712.70 and 84,390,848.20

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Solution

The fourth proportional to 121,379,141.80, 182,068,712.70 and 84,390,848.20 is: 126,586,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,379,141.80 : 182,068,712.70 = 84,390,848.20 : x
  2. Step 2: Convert to fraction form
    121,379,141.80/182,068,712.70 = 84,390,848.20/x
  3. Step 3: Cross multiply
    121,379,141.80x = 182,068,712.70 × 84,390,848.20
  4. Step 4: Simplify right side
    121,379,141.80x = 15,364,933,095,435,112
  5. Step 5: Solve for x
    x = 15,364,933,095,435,112/121,379,141.80
  6. Step 6: Final answer
    x = 126,586,272.30

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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.