Home / 21,263,228.10-31,910,588.55-8,492,897.70

Finding the Fourth Proportional to 21,263,228.10, 31,910,588.55 and 8,492,897.70

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Solution

The fourth proportional to 21,263,228.10, 31,910,588.55 and 8,492,897.70 is: 12,745,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263,228.10 : 31,910,588.55 = 8,492,897.70 : x
  2. Step 2: Convert to fraction form
    21,263,228.10/31,910,588.55 = 8,492,897.70/x
  3. Step 3: Cross multiply
    21,263,228.10x = 31,910,588.55 × 8,492,897.70
  4. Step 4: Simplify right side
    21,263,228.10x = 271,013,364,101,941.31
  5. Step 5: Solve for x
    x = 271,013,364,101,941.31/21,263,228.10
  6. Step 6: Final answer
    x = 12,745,635.93

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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.