Home / 31,620,010.10-47,447,729.85-13,421,108.30

Finding the Fourth Proportional to 31,620,010.10, 47,447,729.85 and 13,421,108.30

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Solution

The fourth proportional to 31,620,010.10, 47,447,729.85 and 13,421,108.30 is: 20,139,181.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,620,010.10 : 47,447,729.85 = 13,421,108.30 : x
  2. Step 2: Convert to fraction form
    31,620,010.10/47,447,729.85 = 13,421,108.30/x
  3. Step 3: Cross multiply
    31,620,010.10x = 47,447,729.85 × 13,421,108.30
  4. Step 4: Simplify right side
    31,620,010.10x = 636,801,120,905,992.75
  5. Step 5: Solve for x
    x = 636,801,120,905,992.75/31,620,010.10
  6. Step 6: Final answer
    x = 20,139,181.45

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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.