Home / 18,949,791.66-28,424,690.16-4,572,859.47

Finding the Fourth Proportional to 18,949,791.66, 28,424,690.16 and 4,572,859.47

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Solution

The fourth proportional to 18,949,791.66, 28,424,690.16 and 4,572,859.47 is: 6,859,289.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949,791.66 : 28,424,690.16 = 4,572,859.47 : x
  2. Step 2: Convert to fraction form
    18,949,791.66/28,424,690.16 = 4,572,859.47/x
  3. Step 3: Cross multiply
    18,949,791.66x = 28,424,690.16 × 4,572,859.47
  4. Step 4: Simplify right side
    18,949,791.66x = 129,982,113,579,971.81
  5. Step 5: Solve for x
    x = 129,982,113,579,971.81/18,949,791.66
  6. Step 6: Final answer
    x = 6,859,289.85

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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.