Home / 155,641,254.30-214,789,498.68-85,080,763.56

Finding the Fourth Proportional to 155,641,254.30, 214,789,498.68 and 85,080,763.56

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Solution

The fourth proportional to 155,641,254.30, 214,789,498.68 and 85,080,763.56 is: 117,413,950.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,641,254.30 : 214,789,498.68 = 85,080,763.56 : x
  2. Step 2: Convert to fraction form
    155,641,254.30/214,789,498.68 = 85,080,763.56/x
  3. Step 3: Cross multiply
    155,641,254.30x = 214,789,498.68 × 85,080,763.56
  4. Step 4: Simplify right side
    155,641,254.30x = 18,274,454,552,364,012
  5. Step 5: Solve for x
    x = 18,274,454,552,364,012/155,641,254.30
  6. Step 6: Final answer
    x = 117,413,950.66

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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.