Home / 78,267,432.30-108,019,021.08-47,327,823

Finding the Fourth Proportional to 78,267,432.30, 108,019,021.08 and 47,327,823

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Solution

The fourth proportional to 78,267,432.30, 108,019,021.08 and 47,327,823 is: 65,318,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,267,432.30 : 108,019,021.08 = 47,327,823 : x
  2. Step 2: Convert to fraction form
    78,267,432.30/108,019,021.08 = 47,327,823/x
  3. Step 3: Cross multiply
    78,267,432.30x = 108,019,021.08 × 47,327,823
  4. Step 4: Simplify right side
    78,267,432.30x = 5,112,305,110,307,509
  5. Step 5: Solve for x
    x = 5,112,305,110,307,509/78,267,432.30
  6. Step 6: Final answer
    x = 65,318,421.21

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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.