Home / 90,663,715.95-125,116,351.72-51,507,641.30

Finding the Fourth Proportional to 90,663,715.95, 125,116,351.72 and 51,507,641.30

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Solution

The fourth proportional to 90,663,715.95, 125,116,351.72 and 51,507,641.30 is: 71,080,785.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,663,715.95 : 125,116,351.72 = 51,507,641.30 : x
  2. Step 2: Convert to fraction form
    90,663,715.95/125,116,351.72 = 51,507,641.30/x
  3. Step 3: Cross multiply
    90,663,715.95x = 125,116,351.72 × 51,507,641.30
  4. Step 4: Simplify right side
    90,663,715.95x = 6,444,448,165,158,398
  5. Step 5: Solve for x
    x = 6,444,448,165,158,398/90,663,715.95
  6. Step 6: Final answer
    x = 71,080,785.71

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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.