Home / 5,425,785.20-8,139,973.80-1,639,305.20

Finding the Fourth Proportional to 5,425,785.20, 8,139,973.80 and 1,639,305.20

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Solution

The fourth proportional to 5,425,785.20, 8,139,973.80 and 1,639,305.20 is: 2,459,349.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425,785.20 : 8,139,973.80 = 1,639,305.20 : x
  2. Step 2: Convert to fraction form
    5,425,785.20/8,139,973.80 = 1,639,305.20/x
  3. Step 3: Cross multiply
    5,425,785.20x = 8,139,973.80 × 1,639,305.20
  4. Step 4: Simplify right side
    5,425,785.20x = 13,343,901,378,203.76
  5. Step 5: Solve for x
    x = 13,343,901,378,203.76/5,425,785.20
  6. Step 6: Final answer
    x = 2,459,349.36

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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.