Home / 21,313,608.50-29,406,065.60-13,045,050.84

Finding the Fourth Proportional to 21,313,608.50, 29,406,065.60 and 13,045,050.84

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Solution

The fourth proportional to 21,313,608.50, 29,406,065.60 and 13,045,050.84 is: 17,998,060.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313,608.50 : 29,406,065.60 = 13,045,050.84 : x
  2. Step 2: Convert to fraction form
    21,313,608.50/29,406,065.60 = 13,045,050.84/x
  3. Step 3: Cross multiply
    21,313,608.50x = 29,406,065.60 × 13,045,050.84
  4. Step 4: Simplify right side
    21,313,608.50x = 383,603,620,691,149.81
  5. Step 5: Solve for x
    x = 383,603,620,691,149.81/21,313,608.50
  6. Step 6: Final answer
    x = 17,998,060.76

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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.