Home / 120,673,912.20-181,010,868.30-72,300,971.40

Finding the Fourth Proportional to 120,673,912.20, 181,010,868.30 and 72,300,971.40

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Solution

The fourth proportional to 120,673,912.20, 181,010,868.30 and 72,300,971.40 is: 108,451,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,673,912.20 : 181,010,868.30 = 72,300,971.40 : x
  2. Step 2: Convert to fraction form
    120,673,912.20/181,010,868.30 = 72,300,971.40/x
  3. Step 3: Cross multiply
    120,673,912.20x = 181,010,868.30 × 72,300,971.40
  4. Step 4: Simplify right side
    120,673,912.20x = 13,087,261,612,047,468
  5. Step 5: Solve for x
    x = 13,087,261,612,047,468/120,673,912.20
  6. Step 6: Final answer
    x = 108,451,457.10

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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.