Home / 207,971,073.36-287,016,239.88-115,160,216.40

Finding the Fourth Proportional to 207,971,073.36, 287,016,239.88 and 115,160,216.40

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Solution

The fourth proportional to 207,971,073.36, 287,016,239.88 and 115,160,216.40 is: 158,930,046.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,971,073.36 : 287,016,239.88 = 115,160,216.40 : x
  2. Step 2: Convert to fraction form
    207,971,073.36/287,016,239.88 = 115,160,216.40/x
  3. Step 3: Cross multiply
    207,971,073.36x = 287,016,239.88 × 115,160,216.40
  4. Step 4: Simplify right side
    207,971,073.36x = 33,052,852,294,895,112
  5. Step 5: Solve for x
    x = 33,052,852,294,895,112/207,971,073.36
  6. Step 6: Final answer
    x = 158,930,046.19

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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.