Home / 90,640,206.95-125,083,503.59-49,387,099.32

Finding the Fourth Proportional to 90,640,206.95, 125,083,503.59 and 49,387,099.32

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Solution

The fourth proportional to 90,640,206.95, 125,083,503.59 and 49,387,099.32 is: 68,154,206.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,640,206.95 : 125,083,503.59 = 49,387,099.32 : x
  2. Step 2: Convert to fraction form
    90,640,206.95/125,083,503.59 = 49,387,099.32/x
  3. Step 3: Cross multiply
    90,640,206.95x = 125,083,503.59 × 49,387,099.32
  4. Step 4: Simplify right side
    90,640,206.95x = 6,177,511,414,845,971
  5. Step 5: Solve for x
    x = 6,177,511,414,845,971/90,640,206.95
  6. Step 6: Final answer
    x = 68,154,206.87

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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.