Home / 121,119,356.60-181,679,034.90-112,510,012.40

Finding the Fourth Proportional to 121,119,356.60, 181,679,034.90 and 112,510,012.40

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Solution

The fourth proportional to 121,119,356.60, 181,679,034.90 and 112,510,012.40 is: 168,765,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,119,356.60 : 181,679,034.90 = 112,510,012.40 : x
  2. Step 2: Convert to fraction form
    121,119,356.60/181,679,034.90 = 112,510,012.40/x
  3. Step 3: Cross multiply
    121,119,356.60x = 181,679,034.90 × 112,510,012.40
  4. Step 4: Simplify right side
    121,119,356.60x = 20,440,710,469,419,036
  5. Step 5: Solve for x
    x = 20,440,710,469,419,036/121,119,356.60
  6. Step 6: Final answer
    x = 168,765,018.60

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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.