Home / 31,985,770.05-47,964,658.28-12,810,154.05

Finding the Fourth Proportional to 31,985,770.05, 47,964,658.28 and 12,810,154.05

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Solution

The fourth proportional to 31,985,770.05, 47,964,658.28 and 12,810,154.05 is: 19,209,625.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,985,770.05 : 47,964,658.28 = 12,810,154.05 : x
  2. Step 2: Convert to fraction form
    31,985,770.05/47,964,658.28 = 12,810,154.05/x
  3. Step 3: Cross multiply
    31,985,770.05x = 47,964,658.28 × 12,810,154.05
  4. Step 4: Simplify right side
    31,985,770.05x = 614,434,661,458,357.25
  5. Step 5: Solve for x
    x = 614,434,661,458,357.25/31,985,770.05
  6. Step 6: Final answer
    x = 19,209,625.42

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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.