Home / 212,290,562.10-318,557,188.86-115,254,159.42

Finding the Fourth Proportional to 212,290,562.10, 318,557,188.86 and 115,254,159.42

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Solution

The fourth proportional to 212,290,562.10, 318,557,188.86 and 115,254,159.42 is: 172,947,118.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,290,562.10 : 318,557,188.86 = 115,254,159.42 : x
  2. Step 2: Convert to fraction form
    212,290,562.10/318,557,188.86 = 115,254,159.42/x
  3. Step 3: Cross multiply
    212,290,562.10x = 318,557,188.86 × 115,254,159.42
  4. Step 4: Simplify right side
    212,290,562.10x = 36,715,041,029,257,488
  5. Step 5: Solve for x
    x = 36,715,041,029,257,488/212,290,562.10
  6. Step 6: Final answer
    x = 172,947,118.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.