Home / 43,985,817.20-66,010,218.60-18,445,156.40

Finding the Fourth Proportional to 43,985,817.20, 66,010,218.60 and 18,445,156.40

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Solution

The fourth proportional to 43,985,817.20, 66,010,218.60 and 18,445,156.40 is: 27,680,940.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,985,817.20 : 66,010,218.60 = 18,445,156.40 : x
  2. Step 2: Convert to fraction form
    43,985,817.20/66,010,218.60 = 18,445,156.40/x
  3. Step 3: Cross multiply
    43,985,817.20x = 66,010,218.60 × 18,445,156.40
  4. Step 4: Simplify right side
    43,985,817.20x = 1,217,568,806,075,189
  5. Step 5: Solve for x
    x = 1,217,568,806,075,189/43,985,817.20
  6. Step 6: Final answer
    x = 27,680,940.89

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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.