Home / 21,020,930.60-31,532,432.70-10,943,234.60

Finding the Fourth Proportional to 21,020,930.60, 31,532,432.70 and 10,943,234.60

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Solution

The fourth proportional to 21,020,930.60, 31,532,432.70 and 10,943,234.60 is: 16,415,391.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,930.60 : 31,532,432.70 = 10,943,234.60 : x
  2. Step 2: Convert to fraction form
    21,020,930.60/31,532,432.70 = 10,943,234.60/x
  3. Step 3: Cross multiply
    21,020,930.60x = 31,532,432.70 × 10,943,234.60
  4. Step 4: Simplify right side
    21,020,930.60x = 345,066,808,544,811.38
  5. Step 5: Solve for x
    x = 345,066,808,544,811.38/21,020,930.60
  6. Step 6: Final answer
    x = 16,415,391.65

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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.