Home / 3,997,490.40-5,516,390.61-2,278,278.81

Finding the Fourth Proportional to 3,997,490.40, 5,516,390.61 and 2,278,278.81

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Solution

The fourth proportional to 3,997,490.40, 5,516,390.61 and 2,278,278.81 is: 3,143,941.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997,490.40 : 5,516,390.61 = 2,278,278.81 : x
  2. Step 2: Convert to fraction form
    3,997,490.40/5,516,390.61 = 2,278,278.81/x
  3. Step 3: Cross multiply
    3,997,490.40x = 5,516,390.61 × 2,278,278.81
  4. Step 4: Simplify right side
    3,997,490.40x = 12,567,875,834,445.97
  5. Step 5: Solve for x
    x = 12,567,875,834,445.97/3,997,490.40
  6. Step 6: Final answer
    x = 3,143,941.47

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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.