Home / 31,354,778.40-47,013,862.41-12,163,109.82

Finding the Fourth Proportional to 31,354,778.40, 47,013,862.41 and 12,163,109.82

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Solution

The fourth proportional to 31,354,778.40, 47,013,862.41 and 12,163,109.82 is: 18,237,563.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,354,778.40 : 47,013,862.41 = 12,163,109.82 : x
  2. Step 2: Convert to fraction form
    31,354,778.40/47,013,862.41 = 12,163,109.82/x
  3. Step 3: Cross multiply
    31,354,778.40x = 47,013,862.41 × 12,163,109.82
  4. Step 4: Simplify right side
    31,354,778.40x = 571,834,771,555,199.88
  5. Step 5: Solve for x
    x = 571,834,771,555,199.88/31,354,778.40
  6. Step 6: Final answer
    x = 18,237,563.80

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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.