Home / 31,487,920.80-47,231,881.20-15,562,672.80

Finding the Fourth Proportional to 31,487,920.80, 47,231,881.20 and 15,562,672.80

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Solution

The fourth proportional to 31,487,920.80, 47,231,881.20 and 15,562,672.80 is: 23,344,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487,920.80 : 47,231,881.20 = 15,562,672.80 : x
  2. Step 2: Convert to fraction form
    31,487,920.80/47,231,881.20 = 15,562,672.80/x
  3. Step 3: Cross multiply
    31,487,920.80x = 47,231,881.20 × 15,562,672.80
  4. Step 4: Simplify right side
    31,487,920.80x = 735,054,312,844,071.50
  5. Step 5: Solve for x
    x = 735,054,312,844,071.50/31,487,920.80
  6. Step 6: Final answer
    x = 23,344,009.20

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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.