Home / 28,811,742.90-39,759,915.85-15,759,256.69

Finding the Fourth Proportional to 28,811,742.90, 39,759,915.85 and 15,759,256.69

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Solution

The fourth proportional to 28,811,742.90, 39,759,915.85 and 15,759,256.69 is: 21,747,615.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811,742.90 : 39,759,915.85 = 15,759,256.69 : x
  2. Step 2: Convert to fraction form
    28,811,742.90/39,759,915.85 = 15,759,256.69/x
  3. Step 3: Cross multiply
    28,811,742.90x = 39,759,915.85 × 15,759,256.69
  4. Step 4: Simplify right side
    28,811,742.90x = 626,586,719,852,949.50
  5. Step 5: Solve for x
    x = 626,586,719,852,949.50/28,811,742.90
  6. Step 6: Final answer
    x = 21,747,615.96

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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.