Home / 90,640,205.13-125,083,501.08-49,387,097.51

Finding the Fourth Proportional to 90,640,205.13, 125,083,501.08 and 49,387,097.51

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Solution

The fourth proportional to 90,640,205.13, 125,083,501.08 and 49,387,097.51 is: 68,154,204.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,640,205.13 : 125,083,501.08 = 49,387,097.51 : x
  2. Step 2: Convert to fraction form
    90,640,205.13/125,083,501.08 = 49,387,097.51/x
  3. Step 3: Cross multiply
    90,640,205.13x = 125,083,501.08 × 49,387,097.51
  4. Step 4: Simplify right side
    90,640,205.13x = 6,177,511,064,730,150
  5. Step 5: Solve for x
    x = 6,177,511,064,730,150/90,640,205.13
  6. Step 6: Final answer
    x = 68,154,204.37

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1.5x scale

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.