Home / 28,693,869.28-39,597,217.30-15,640,841.79

Finding the Fourth Proportional to 28,693,869.28, 39,597,217.30 and 15,640,841.79

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Solution

The fourth proportional to 28,693,869.28, 39,597,217.30 and 15,640,841.79 is: 21,584,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,693,869.28 : 39,597,217.30 = 15,640,841.79 : x
  2. Step 2: Convert to fraction form
    28,693,869.28/39,597,217.30 = 15,640,841.79/x
  3. Step 3: Cross multiply
    28,693,869.28x = 39,597,217.30 × 15,640,841.79
  4. Step 4: Simplify right side
    28,693,869.28x = 619,333,811,035,346.75
  5. Step 5: Solve for x
    x = 619,333,811,035,346.75/28,693,869.28
  6. Step 6: Final answer
    x = 21,584,185.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.