Home / 210,466,534.68-290,299,703.76-137,226,879

Finding the Fourth Proportional to 210,466,534.68, 290,299,703.76 and 137,226,879

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Solution

The fourth proportional to 210,466,534.68, 290,299,703.76 and 137,226,879 is: 189,279,128.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,466,534.68 : 290,299,703.76 = 137,226,879 : x
  2. Step 2: Convert to fraction form
    210,466,534.68/290,299,703.76 = 137,226,879/x
  3. Step 3: Cross multiply
    210,466,534.68x = 290,299,703.76 × 137,226,879
  4. Step 4: Simplify right side
    210,466,534.68x = 39,836,922,321,609,360
  5. Step 5: Solve for x
    x = 39,836,922,321,609,360/210,466,534.68
  6. Step 6: Final answer
    x = 189,279,128.78

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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.