Home / 312,704,367.12-431,532,535.08-173,475,132.24

Finding the Fourth Proportional to 312,704,367.12, 431,532,535.08 and 173,475,132.24

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Solution

The fourth proportional to 312,704,367.12, 431,532,535.08 and 173,475,132.24 is: 239,395,964.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,704,367.12 : 431,532,535.08 = 173,475,132.24 : x
  2. Step 2: Convert to fraction form
    312,704,367.12/431,532,535.08 = 173,475,132.24/x
  3. Step 3: Cross multiply
    312,704,367.12x = 431,532,535.08 × 173,475,132.24
  4. Step 4: Simplify right side
    312,704,367.12x = 74,860,163,588,865,440
  5. Step 5: Solve for x
    x = 74,860,163,588,865,440/312,704,367.12
  6. Step 6: Final answer
    x = 239,395,964.56

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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.