Home / 151,731,720.30-209,390,405.10-82,117,095.03

Finding the Fourth Proportional to 151,731,720.30, 209,390,405.10 and 82,117,095.03

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Solution

The fourth proportional to 151,731,720.30, 209,390,405.10 and 82,117,095.03 is: 113,321,932.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,731,720.30 : 209,390,405.10 = 82,117,095.03 : x
  2. Step 2: Convert to fraction form
    151,731,720.30/209,390,405.10 = 82,117,095.03/x
  3. Step 3: Cross multiply
    151,731,720.30x = 209,390,405.10 × 82,117,095.03
  4. Step 4: Simplify right side
    151,731,720.30x = 17,194,531,793,966,896
  5. Step 5: Solve for x
    x = 17,194,531,793,966,896/151,731,720.30
  6. Step 6: Final answer
    x = 113,321,932.68

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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.