Home / 2,166,931.60-2,988,925.73-1,393,540.23

Finding the Fourth Proportional to 2,166,931.60, 2,988,925.73 and 1,393,540.23

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Solution

The fourth proportional to 2,166,931.60, 2,988,925.73 and 1,393,540.23 is: 1,922,159.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,931.60 : 2,988,925.73 = 1,393,540.23 : x
  2. Step 2: Convert to fraction form
    2,166,931.60/2,988,925.73 = 1,393,540.23/x
  3. Step 3: Cross multiply
    2,166,931.60x = 2,988,925.73 × 1,393,540.23
  4. Step 4: Simplify right side
    2,166,931.60x = 4,165,188,242,269.42
  5. Step 5: Solve for x
    x = 4,165,188,242,269.42/2,166,931.60
  6. Step 6: Final answer
    x = 1,922,159.54

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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.