Home / 15,255,265-21,047,139.62-8,638,951.72

Finding the Fourth Proportional to 15,255,265, 21,047,139.62 and 8,638,951.72

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Solution

The fourth proportional to 15,255,265, 21,047,139.62 and 8,638,951.72 is: 11,918,850.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255,265 : 21,047,139.62 = 8,638,951.72 : x
  2. Step 2: Convert to fraction form
    15,255,265/21,047,139.62 = 8,638,951.72/x
  3. Step 3: Cross multiply
    15,255,265x = 21,047,139.62 × 8,638,951.72
  4. Step 4: Simplify right side
    15,255,265x = 181,825,223,021,279.16
  5. Step 5: Solve for x
    x = 181,825,223,021,279.16/15,255,265
  6. Step 6: Final answer
    x = 11,918,850.51

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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.