Home / 155,052,546.12-213,977,077.92-85,442,411.16

Finding the Fourth Proportional to 155,052,546.12, 213,977,077.92 and 85,442,411.16

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Solution

The fourth proportional to 155,052,546.12, 213,977,077.92 and 85,442,411.16 is: 117,913,042.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,052,546.12 : 213,977,077.92 = 85,442,411.16 : x
  2. Step 2: Convert to fraction form
    155,052,546.12/213,977,077.92 = 85,442,411.16/x
  3. Step 3: Cross multiply
    155,052,546.12x = 213,977,077.92 × 85,442,411.16
  4. Step 4: Simplify right side
    155,052,546.12x = 18,282,717,470,455,996
  5. Step 5: Solve for x
    x = 18,282,717,470,455,996/155,052,546.12
  6. Step 6: Final answer
    x = 117,913,042.56

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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.