Home / 21,450,913.80-32,133,288.76-9,920,218.92

Finding the Fourth Proportional to 21,450,913.80, 32,133,288.76 and 9,920,218.92

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Solution

The fourth proportional to 21,450,913.80, 32,133,288.76 and 9,920,218.92 is: 14,860,404.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450,913.80 : 32,133,288.76 = 9,920,218.92 : x
  2. Step 2: Convert to fraction form
    21,450,913.80/32,133,288.76 = 9,920,218.92/x
  3. Step 3: Cross multiply
    21,450,913.80x = 32,133,288.76 × 9,920,218.92
  4. Step 4: Simplify right side
    21,450,913.80x = 318,769,259,118,775.38
  5. Step 5: Solve for x
    x = 318,769,259,118,775.38/21,450,913.80
  6. Step 6: Final answer
    x = 14,860,404.65

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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.