Home / 21,219,510.30-31,834,242.09-8,440,742.94

Finding the Fourth Proportional to 21,219,510.30, 31,834,242.09 and 8,440,742.94

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Solution

The fourth proportional to 21,219,510.30, 31,834,242.09 and 8,440,742.94 is: 12,663,094.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219,510.30 : 31,834,242.09 = 8,440,742.94 : x
  2. Step 2: Convert to fraction form
    21,219,510.30/31,834,242.09 = 8,440,742.94/x
  3. Step 3: Cross multiply
    21,219,510.30x = 31,834,242.09 × 8,440,742.94
  4. Step 4: Simplify right side
    21,219,510.30x = 268,704,654,171,418.31
  5. Step 5: Solve for x
    x = 268,704,654,171,418.31/21,219,510.30
  6. Step 6: Final answer
    x = 12,663,094.03

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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.