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Finding the Fourth Proportional to 6,689,358.80, 10,034,038.20 and 1,640,669.30

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Solution

The fourth proportional to 6,689,358.80, 10,034,038.20 and 1,640,669.30 is: 2,461,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689,358.80 : 10,034,038.20 = 1,640,669.30 : x
  2. Step 2: Convert to fraction form
    6,689,358.80/10,034,038.20 = 1,640,669.30/x
  3. Step 3: Cross multiply
    6,689,358.80x = 10,034,038.20 × 1,640,669.30
  4. Step 4: Simplify right side
    6,689,358.80x = 16,462,538,429,767.26
  5. Step 5: Solve for x
    x = 16,462,538,429,767.26/6,689,358.80
  6. Step 6: Final answer
    x = 2,461,003.95

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Similar ratio
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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.