Home / 216,654,811.16-299,011,837.31-121,321,624.03

Finding the Fourth Proportional to 216,654,811.16, 299,011,837.31 and 121,321,624.03

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Solution

The fourth proportional to 216,654,811.16, 299,011,837.31 and 121,321,624.03 is: 167,439,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,654,811.16 : 299,011,837.31 = 121,321,624.03 : x
  2. Step 2: Convert to fraction form
    216,654,811.16/299,011,837.31 = 121,321,624.03/x
  3. Step 3: Cross multiply
    216,654,811.16x = 299,011,837.31 × 121,321,624.03
  4. Step 4: Simplify right side
    216,654,811.16x = 36,276,601,706,425,992
  5. Step 5: Solve for x
    x = 36,276,601,706,425,992/216,654,811.16
  6. Step 6: Final answer
    x = 167,439,631.33

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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.