Home / 21,860,437.20-32,790,655.80-12,790,510.80

Finding the Fourth Proportional to 21,860,437.20, 32,790,655.80 and 12,790,510.80

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Solution

The fourth proportional to 21,860,437.20, 32,790,655.80 and 12,790,510.80 is: 19,185,766.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,437.20 : 32,790,655.80 = 12,790,510.80 : x
  2. Step 2: Convert to fraction form
    21,860,437.20/32,790,655.80 = 12,790,510.80/x
  3. Step 3: Cross multiply
    21,860,437.20x = 32,790,655.80 × 12,790,510.80
  4. Step 4: Simplify right side
    21,860,437.20x = 419,409,237,148,982.69
  5. Step 5: Solve for x
    x = 419,409,237,148,982.69/21,860,437.20
  6. Step 6: Final answer
    x = 19,185,766.20

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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.