Home / 28,924,654.41-39,915,913.59-15,872,131.76

Finding the Fourth Proportional to 28,924,654.41, 39,915,913.59 and 15,872,131.76

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Solution

The fourth proportional to 28,924,654.41, 39,915,913.59 and 15,872,131.76 is: 21,903,481.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,924,654.41 : 39,915,913.59 = 15,872,131.76 : x
  2. Step 2: Convert to fraction form
    28,924,654.41/39,915,913.59 = 15,872,131.76/x
  3. Step 3: Cross multiply
    28,924,654.41x = 39,915,913.59 × 15,872,131.76
  4. Step 4: Simplify right side
    28,924,654.41x = 633,550,639,621,675.12
  5. Step 5: Solve for x
    x = 633,550,639,621,675.12/28,924,654.41
  6. Step 6: Final answer
    x = 21,903,481.74

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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.