Home / 18,668,672-28,007,731.92-5,205,500

Finding the Fourth Proportional to 18,668,672, 28,007,731.92 and 5,205,500

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Solution

The fourth proportional to 18,668,672, 28,007,731.92 and 5,205,500 is: 7,809,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668,672 : 28,007,731.92 = 5,205,500 : x
  2. Step 2: Convert to fraction form
    18,668,672/28,007,731.92 = 5,205,500/x
  3. Step 3: Cross multiply
    18,668,672x = 28,007,731.92 × 5,205,500
  4. Step 4: Simplify right side
    18,668,672x = 145,794,248,509,560
  5. Step 5: Solve for x
    x = 145,794,248,509,560/18,668,672
  6. Step 6: Final answer
    x = 7,809,567.20

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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.