Home / 31,939,577.40-47,929,049.10-12,768,335.40

Finding the Fourth Proportional to 31,939,577.40, 47,929,049.10 and 12,768,335.40

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Solution

The fourth proportional to 31,939,577.40, 47,929,049.10 and 12,768,335.40 is: 19,160,371.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,939,577.40 : 47,929,049.10 = 12,768,335.40 : x
  2. Step 2: Convert to fraction form
    31,939,577.40/47,929,049.10 = 12,768,335.40/x
  3. Step 3: Cross multiply
    31,939,577.40x = 47,929,049.10 × 12,768,335.40
  4. Step 4: Simplify right side
    31,939,577.40x = 611,974,174,311,868.12
  5. Step 5: Solve for x
    x = 611,974,174,311,868.12/31,939,577.40
  6. Step 6: Final answer
    x = 19,160,371.68

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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.