Home / 210,256,643.28-290,151,111.24-117,438,471.12

Finding the Fourth Proportional to 210,256,643.28, 290,151,111.24 and 117,438,471.12

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Solution

The fourth proportional to 210,256,643.28, 290,151,111.24 and 117,438,471.12 is: 162,063,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,256,643.28 : 290,151,111.24 = 117,438,471.12 : x
  2. Step 2: Convert to fraction form
    210,256,643.28/290,151,111.24 = 117,438,471.12/x
  3. Step 3: Cross multiply
    210,256,643.28x = 290,151,111.24 × 117,438,471.12
  4. Step 4: Simplify right side
    210,256,643.28x = 34,074,902,897,794,648
  5. Step 5: Solve for x
    x = 34,074,902,897,794,648/210,256,643.28
  6. Step 6: Final answer
    x = 162,063,382.95

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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.