Home / 31,180,179-43,007,297.23-20,329,859.64

Finding the Fourth Proportional to 31,180,179, 43,007,297.23 and 20,329,859.64

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Solution

The fourth proportional to 31,180,179, 43,007,297.23 and 20,329,859.64 is: 28,041,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,180,179 : 43,007,297.23 = 20,329,859.64 : x
  2. Step 2: Convert to fraction form
    31,180,179/43,007,297.23 = 20,329,859.64/x
  3. Step 3: Cross multiply
    31,180,179x = 43,007,297.23 × 20,329,859.64
  4. Step 4: Simplify right side
    31,180,179x = 874,332,316,181,660.75
  5. Step 5: Solve for x
    x = 874,332,316,181,660.75/31,180,179
  6. Step 6: Final answer
    x = 28,041,285.98

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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.