Home / 127,817,812.80-191,348,805.60-120,343,521.60

Finding the Fourth Proportional to 127,817,812.80, 191,348,805.60 and 120,343,521.60

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Solution

The fourth proportional to 127,817,812.80, 191,348,805.60 and 120,343,521.60 is: 180,159,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,817,812.80 : 191,348,805.60 = 120,343,521.60 : x
  2. Step 2: Convert to fraction form
    127,817,812.80/191,348,805.60 = 120,343,521.60/x
  3. Step 3: Cross multiply
    127,817,812.80x = 191,348,805.60 × 120,343,521.60
  4. Step 4: Simplify right side
    127,817,812.80x = 23,027,589,119,857,800
  5. Step 5: Solve for x
    x = 23,027,589,119,857,800/127,817,812.80
  6. Step 6: Final answer
    x = 180,159,467.73

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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.