Home / 72,738,087.45-109,107,131.18-69,868,306.05

Finding the Fourth Proportional to 72,738,087.45, 109,107,131.18 and 69,868,306.05

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Solution

The fourth proportional to 72,738,087.45, 109,107,131.18 and 69,868,306.05 is: 104,802,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,738,087.45 : 109,107,131.18 = 69,868,306.05 : x
  2. Step 2: Convert to fraction form
    72,738,087.45/109,107,131.18 = 69,868,306.05/x
  3. Step 3: Cross multiply
    72,738,087.45x = 109,107,131.18 × 69,868,306.05
  4. Step 4: Simplify right side
    72,738,087.45x = 7,623,130,433,172,396
  5. Step 5: Solve for x
    x = 7,623,130,433,172,396/72,738,087.45
  6. Step 6: Final answer
    x = 104,802,459.08

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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.