Home / 21,618,855.05-32,428,870.63-7,239,242.57

Finding the Fourth Proportional to 21,618,855.05, 32,428,870.63 and 7,239,242.57

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Solution

The fourth proportional to 21,618,855.05, 32,428,870.63 and 7,239,242.57 is: 10,859,060.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618,855.05 : 32,428,870.63 = 7,239,242.57 : x
  2. Step 2: Convert to fraction form
    21,618,855.05/32,428,870.63 = 7,239,242.57/x
  3. Step 3: Cross multiply
    21,618,855.05x = 32,428,870.63 × 7,239,242.57
  4. Step 4: Simplify right side
    21,618,855.05x = 234,760,460,581,476.28
  5. Step 5: Solve for x
    x = 234,760,460,581,476.28/21,618,855.05
  6. Step 6: Final answer
    x = 10,859,060.76

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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.