Home / 210,301,180.20-290,231,338.14-121,020,491.88

Finding the Fourth Proportional to 210,301,180.20, 290,231,338.14 and 121,020,491.88

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Solution

The fourth proportional to 210,301,180.20, 290,231,338.14 and 121,020,491.88 is: 167,017,319.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,301,180.20 : 290,231,338.14 = 121,020,491.88 : x
  2. Step 2: Convert to fraction form
    210,301,180.20/290,231,338.14 = 121,020,491.88/x
  3. Step 3: Cross multiply
    210,301,180.20x = 290,231,338.14 × 121,020,491.88
  4. Step 4: Simplify right side
    210,301,180.20x = 35,123,939,300,693,400
  5. Step 5: Solve for x
    x = 35,123,939,300,693,400/210,301,180.20
  6. Step 6: Final answer
    x = 167,017,319.01

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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.