Home / 218,390,452.33-301,386,261.36-129,158,887.56

Finding the Fourth Proportional to 218,390,452.33, 301,386,261.36 and 129,158,887.56

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Solution

The fourth proportional to 218,390,452.33, 301,386,261.36 and 129,158,887.56 is: 178,243,663.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,390,452.33 : 301,386,261.36 = 129,158,887.56 : x
  2. Step 2: Convert to fraction form
    218,390,452.33/301,386,261.36 = 129,158,887.56/x
  3. Step 3: Cross multiply
    218,390,452.33x = 301,386,261.36 × 129,158,887.56
  4. Step 4: Simplify right side
    218,390,452.33x = 38,926,714,241,805,400
  5. Step 5: Solve for x
    x = 38,926,714,241,805,400/218,390,452.33
  6. Step 6: Final answer
    x = 178,243,663.25

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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.