Home / 207,966,874.07-287,003,253.80-115,147,390.12

Finding the Fourth Proportional to 207,966,874.07, 287,003,253.80 and 115,147,390.12

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Solution

The fourth proportional to 207,966,874.07, 287,003,253.80 and 115,147,390.12 is: 158,908,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,966,874.07 : 287,003,253.80 = 115,147,390.12 : x
  2. Step 2: Convert to fraction form
    207,966,874.07/287,003,253.80 = 115,147,390.12/x
  3. Step 3: Cross multiply
    207,966,874.07x = 287,003,253.80 × 115,147,390.12
  4. Step 4: Simplify right side
    207,966,874.07x = 33,047,675,631,017,976
  5. Step 5: Solve for x
    x = 33,047,675,631,017,976/207,966,874.07
  6. Step 6: Final answer
    x = 158,908,363.55

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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.