Home / 31,293,981.28-46,931,865.36-12,120,461.92

Finding the Fourth Proportional to 31,293,981.28, 46,931,865.36 and 12,120,461.92

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Solution

The fourth proportional to 31,293,981.28, 46,931,865.36 and 12,120,461.92 is: 18,177,165.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,293,981.28 : 46,931,865.36 = 12,120,461.92 : x
  2. Step 2: Convert to fraction form
    31,293,981.28/46,931,865.36 = 12,120,461.92/x
  3. Step 3: Cross multiply
    31,293,981.28x = 46,931,865.36 × 12,120,461.92
  4. Step 4: Simplify right side
    31,293,981.28x = 568,835,886,930,447.12
  5. Step 5: Solve for x
    x = 568,835,886,930,447.12/31,293,981.28
  6. Step 6: Final answer
    x = 18,177,165.82

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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.