Home / 111,968,139.40-167,952,209.10-47,344,913.80

Finding the Fourth Proportional to 111,968,139.40, 167,952,209.10 and 47,344,913.80

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Solution

The fourth proportional to 111,968,139.40, 167,952,209.10 and 47,344,913.80 is: 71,017,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,968,139.40 : 167,952,209.10 = 47,344,913.80 : x
  2. Step 2: Convert to fraction form
    111,968,139.40/167,952,209.10 = 47,344,913.80/x
  3. Step 3: Cross multiply
    111,968,139.40x = 167,952,209.10 × 47,344,913.80
  4. Step 4: Simplify right side
    111,968,139.40x = 7,951,682,862,359,075
  5. Step 5: Solve for x
    x = 7,951,682,862,359,075/111,968,139.40
  6. Step 6: Final answer
    x = 71,017,370.70

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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.