Home / 18,120,703.20-25,007,649.12-10,386,246.48

Finding the Fourth Proportional to 18,120,703.20, 25,007,649.12 and 10,386,246.48

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Solution

The fourth proportional to 18,120,703.20, 25,007,649.12 and 10,386,246.48 is: 14,333,638.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,703.20 : 25,007,649.12 = 10,386,246.48 : x
  2. Step 2: Convert to fraction form
    18,120,703.20/25,007,649.12 = 10,386,246.48/x
  3. Step 3: Cross multiply
    18,120,703.20x = 25,007,649.12 × 10,386,246.48
  4. Step 4: Simplify right side
    18,120,703.20x = 259,735,607,645,675.12
  5. Step 5: Solve for x
    x = 259,735,607,645,675.12/18,120,703.20
  6. Step 6: Final answer
    x = 14,333,638.42

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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.