Home / 21,280,765.50-29,367,490.41-12,113,409.06

Finding the Fourth Proportional to 21,280,765.50, 29,367,490.41 and 12,113,409.06

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Solution

The fourth proportional to 21,280,765.50, 29,367,490.41 and 12,113,409.06 is: 16,716,523.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280,765.50 : 29,367,490.41 = 12,113,409.06 : x
  2. Step 2: Convert to fraction form
    21,280,765.50/29,367,490.41 = 12,113,409.06/x
  3. Step 3: Cross multiply
    21,280,765.50x = 29,367,490.41 × 12,113,409.06
  4. Step 4: Simplify right side
    21,280,765.50x = 355,740,424,401,957.12
  5. Step 5: Solve for x
    x = 355,740,424,401,957.12/21,280,765.50
  6. Step 6: Final answer
    x = 16,716,523.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.