Home / 31,529,339.76-47,289,941.82-9,966,121.18

Finding the Fourth Proportional to 31,529,339.76, 47,289,941.82 and 9,966,121.18

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Solution

The fourth proportional to 31,529,339.76, 47,289,941.82 and 9,966,121.18 is: 14,947,895.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,529,339.76 : 47,289,941.82 = 9,966,121.18 : x
  2. Step 2: Convert to fraction form
    31,529,339.76/47,289,941.82 = 9,966,121.18/x
  3. Step 3: Cross multiply
    31,529,339.76x = 47,289,941.82 × 9,966,121.18
  4. Step 4: Simplify right side
    31,529,339.76x = 471,297,290,893,026.12
  5. Step 5: Solve for x
    x = 471,297,290,893,026.12/31,529,339.76
  6. Step 6: Final answer
    x = 14,947,895.98

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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.