Home / 28,773,221.70-39,706,581.33-15,720,199.68

Finding the Fourth Proportional to 28,773,221.70, 39,706,581.33 and 15,720,199.68

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Solution

The fourth proportional to 28,773,221.70, 39,706,581.33 and 15,720,199.68 is: 21,693,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,773,221.70 : 39,706,581.33 = 15,720,199.68 : x
  2. Step 2: Convert to fraction form
    28,773,221.70/39,706,581.33 = 15,720,199.68/x
  3. Step 3: Cross multiply
    28,773,221.70x = 39,706,581.33 × 15,720,199.68
  4. Step 4: Simplify right side
    28,773,221.70x = 624,195,387,117,759.88
  5. Step 5: Solve for x
    x = 624,195,387,117,759.88/28,773,221.70
  6. Step 6: Final answer
    x = 21,693,621.72

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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.