Home / 290,034,896.40-400,253,263.74-157,879,691.46

Finding the Fourth Proportional to 290,034,896.40, 400,253,263.74 and 157,879,691.46

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Solution

The fourth proportional to 290,034,896.40, 400,253,263.74 and 157,879,691.46 is: 217,876,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,034,896.40 : 400,253,263.74 = 157,879,691.46 : x
  2. Step 2: Convert to fraction form
    290,034,896.40/400,253,263.74 = 157,879,691.46/x
  3. Step 3: Cross multiply
    290,034,896.40x = 400,253,263.74 × 157,879,691.46
  4. Step 4: Simplify right side
    290,034,896.40x = 63,191,861,785,129,208
  5. Step 5: Solve for x
    x = 63,191,861,785,129,208/290,034,896.40
  6. Step 6: Final answer
    x = 217,876,754.04

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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.