Home / 7,121,829.40-10,682,757.48-1,730,484.40

Finding the Fourth Proportional to 7,121,829.40, 10,682,757.48 and 1,730,484.40

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Solution

The fourth proportional to 7,121,829.40, 10,682,757.48 and 1,730,484.40 is: 2,595,729.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,829.40 : 10,682,757.48 = 1,730,484.40 : x
  2. Step 2: Convert to fraction form
    7,121,829.40/10,682,757.48 = 1,730,484.40/x
  3. Step 3: Cross multiply
    7,121,829.40x = 10,682,757.48 × 1,730,484.40
  4. Step 4: Simplify right side
    7,121,829.40x = 18,486,345,168,123.31
  5. Step 5: Solve for x
    x = 18,486,345,168,123.31/7,121,829.40
  6. Step 6: Final answer
    x = 2,595,729.85

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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.