Home / 21,420,127.30-29,559,775.68-12,252,770.05

Finding the Fourth Proportional to 21,420,127.30, 29,559,775.68 and 12,252,770.05

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Solution

The fourth proportional to 21,420,127.30, 29,559,775.68 and 12,252,770.05 is: 16,908,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420,127.30 : 29,559,775.68 = 12,252,770.05 : x
  2. Step 2: Convert to fraction form
    21,420,127.30/29,559,775.68 = 12,252,770.05/x
  3. Step 3: Cross multiply
    21,420,127.30x = 29,559,775.68 × 12,252,770.05
  4. Step 4: Simplify right side
    21,420,127.30x = 362,189,134,280,932.88
  5. Step 5: Solve for x
    x = 362,189,134,280,932.88/21,420,127.30
  6. Step 6: Final answer
    x = 16,908,822.68

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1.5x scale

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.