Home / 3,143,221.12-4,338,166.98-1,854,378.28

Finding the Fourth Proportional to 3,143,221.12, 4,338,166.98 and 1,854,378.28

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Solution

The fourth proportional to 3,143,221.12, 4,338,166.98 and 1,854,378.28 is: 2,559,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143,221.12 : 4,338,166.98 = 1,854,378.28 : x
  2. Step 2: Convert to fraction form
    3,143,221.12/4,338,166.98 = 1,854,378.28/x
  3. Step 3: Cross multiply
    3,143,221.12x = 4,338,166.98 × 1,854,378.28
  4. Step 4: Simplify right side
    3,143,221.12x = 8,044,602,622,725.20
  5. Step 5: Solve for x
    x = 8,044,602,622,725.20/3,143,221.12
  6. Step 6: Final answer
    x = 2,559,349.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.