Home / 28,457,721.60-42,687,763.20-8,262,963.60

Finding the Fourth Proportional to 28,457,721.60, 42,687,763.20 and 8,262,963.60

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Solution

The fourth proportional to 28,457,721.60, 42,687,763.20 and 8,262,963.60 is: 12,394,788.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,457,721.60 : 42,687,763.20 = 8,262,963.60 : x
  2. Step 2: Convert to fraction form
    28,457,721.60/42,687,763.20 = 8,262,963.60/x
  3. Step 3: Cross multiply
    28,457,721.60x = 42,687,763.20 × 8,262,963.60
  4. Step 4: Simplify right side
    28,457,721.60x = 352,727,433,487,019.50
  5. Step 5: Solve for x
    x = 352,727,433,487,019.50/28,457,721.60
  6. Step 6: Final answer
    x = 12,394,788.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.