Home / 39,326,931.66-54,274,396.23-21,689,283.72

Finding the Fourth Proportional to 39,326,931.66, 54,274,396.23 and 21,689,283.72

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Solution

The fourth proportional to 39,326,931.66, 54,274,396.23 and 21,689,283.72 is: 29,932,993.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,326,931.66 : 54,274,396.23 = 21,689,283.72 : x
  2. Step 2: Convert to fraction form
    39,326,931.66/54,274,396.23 = 21,689,283.72/x
  3. Step 3: Cross multiply
    39,326,931.66x = 54,274,396.23 × 21,689,283.72
  4. Step 4: Simplify right side
    39,326,931.66x = 1,177,172,778,564,168.25
  5. Step 5: Solve for x
    x = 1,177,172,778,564,168.25/39,326,931.66
  6. Step 6: Final answer
    x = 29,932,993.22

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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.