Home / 121,119,368.10-181,679,052.15-112,510,023.90

Finding the Fourth Proportional to 121,119,368.10, 181,679,052.15 and 112,510,023.90

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Solution

The fourth proportional to 121,119,368.10, 181,679,052.15 and 112,510,023.90 is: 168,765,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,119,368.10 : 181,679,052.15 = 112,510,023.90 : x
  2. Step 2: Convert to fraction form
    121,119,368.10/181,679,052.15 = 112,510,023.90/x
  3. Step 3: Cross multiply
    121,119,368.10x = 181,679,052.15 × 112,510,023.90
  4. Step 4: Simplify right side
    121,119,368.10x = 20,440,714,499,525,848
  5. Step 5: Solve for x
    x = 20,440,714,499,525,848/121,119,368.10
  6. Step 6: Final answer
    x = 168,765,035.85

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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.