Home / 5,280,690.11-7,287,100.40-3,243,105.95

Finding the Fourth Proportional to 5,280,690.11, 7,287,100.40 and 3,243,105.95

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Solution

The fourth proportional to 5,280,690.11, 7,287,100.40 and 3,243,105.95 is: 4,475,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,690.11 : 7,287,100.40 = 3,243,105.95 : x
  2. Step 2: Convert to fraction form
    5,280,690.11/7,287,100.40 = 3,243,105.95/x
  3. Step 3: Cross multiply
    5,280,690.11x = 7,287,100.40 × 3,243,105.95
  4. Step 4: Simplify right side
    5,280,690.11x = 23,632,838,637,159.64
  5. Step 5: Solve for x
    x = 23,632,838,637,159.64/5,280,690.11
  6. Step 6: Final answer
    x = 4,475,331.48

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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.