Home / 275,839,758.32-413,860,528.31-128,357,656.56

Finding the Fourth Proportional to 275,839,758.32, 413,860,528.31 and 128,357,656.56

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Solution

The fourth proportional to 275,839,758.32, 413,860,528.31 and 128,357,656.56 is: 192,583,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,839,758.32 : 413,860,528.31 = 128,357,656.56 : x
  2. Step 2: Convert to fraction form
    275,839,758.32/413,860,528.31 = 128,357,656.56/x
  3. Step 3: Cross multiply
    275,839,758.32x = 413,860,528.31 × 128,357,656.56
  4. Step 4: Simplify right side
    275,839,758.32x = 53,122,167,555,913,352
  5. Step 5: Solve for x
    x = 53,122,167,555,913,352/275,839,758.32
  6. Step 6: Final answer
    x = 192,583,432.79

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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.