Home / 42,005,925.81-57,929,654.04-28,794,302.55

Finding the Fourth Proportional to 42,005,925.81, 57,929,654.04 and 28,794,302.55

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Solution

The fourth proportional to 42,005,925.81, 57,929,654.04 and 28,794,302.55 is: 39,709,730.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,005,925.81 : 57,929,654.04 = 28,794,302.55 : x
  2. Step 2: Convert to fraction form
    42,005,925.81/57,929,654.04 = 28,794,302.55/x
  3. Step 3: Cross multiply
    42,005,925.81x = 57,929,654.04 × 28,794,302.55
  4. Step 4: Simplify right side
    42,005,925.81x = 1,668,043,985,044,589.75
  5. Step 5: Solve for x
    x = 1,668,043,985,044,589.75/42,005,925.81
  6. Step 6: Final answer
    x = 39,709,730.30

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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.