Home / 18,128,641.79-25,017,524.73-9,868,763.79

Finding the Fourth Proportional to 18,128,641.79, 25,017,524.73 and 9,868,763.79

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Solution

The fourth proportional to 18,128,641.79, 25,017,524.73 and 9,868,763.79 is: 13,618,893.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128,641.79 : 25,017,524.73 = 9,868,763.79 : x
  2. Step 2: Convert to fraction form
    18,128,641.79/25,017,524.73 = 9,868,763.79/x
  3. Step 3: Cross multiply
    18,128,641.79x = 25,017,524.73 × 9,868,763.79
  4. Step 4: Simplify right side
    18,128,641.79x = 246,892,042,170,853.50
  5. Step 5: Solve for x
    x = 246,892,042,170,853.50/18,128,641.79
  6. Step 6: Final answer
    x = 13,618,893.52

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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.