Home / 31,409,862.80-47,079,802.20-12,234,246.80

Finding the Fourth Proportional to 31,409,862.80, 47,079,802.20 and 12,234,246.80

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Solution

The fourth proportional to 31,409,862.80, 47,079,802.20 and 12,234,246.80 is: 18,337,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,409,862.80 : 47,079,802.20 = 12,234,246.80 : x
  2. Step 2: Convert to fraction form
    31,409,862.80/47,079,802.20 = 12,234,246.80/x
  3. Step 3: Cross multiply
    31,409,862.80x = 47,079,802.20 × 12,234,246.80
  4. Step 4: Simplify right side
    31,409,862.80x = 575,985,919,409,983
  5. Step 5: Solve for x
    x = 575,985,919,409,983/31,409,862.80
  6. Step 6: Final answer
    x = 18,337,740.70

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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.