Home / 28,591,708.19-39,456,862.09-15,538,967.78

Finding the Fourth Proportional to 28,591,708.19, 39,456,862.09 and 15,538,967.78

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Solution

The fourth proportional to 28,591,708.19, 39,456,862.09 and 15,538,967.78 is: 21,443,941.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591,708.19 : 39,456,862.09 = 15,538,967.78 : x
  2. Step 2: Convert to fraction form
    28,591,708.19/39,456,862.09 = 15,538,967.78/x
  3. Step 3: Cross multiply
    28,591,708.19x = 39,456,862.09 × 15,538,967.78
  4. Step 4: Simplify right side
    28,591,708.19x = 613,118,908,480,281.75
  5. Step 5: Solve for x
    x = 613,118,908,480,281.75/28,591,708.19
  6. Step 6: Final answer
    x = 21,443,941.18

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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.