Home / 31,709,853.42-43,758,853.46-18,657,957.71

Finding the Fourth Proportional to 31,709,853.42, 43,758,853.46 and 18,657,957.71

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Solution

The fourth proportional to 31,709,853.42, 43,758,853.46 and 18,657,957.71 is: 25,747,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709,853.42 : 43,758,853.46 = 18,657,957.71 : x
  2. Step 2: Convert to fraction form
    31,709,853.42/43,758,853.46 = 18,657,957.71/x
  3. Step 3: Cross multiply
    31,709,853.42x = 43,758,853.46 × 18,657,957.71
  4. Step 4: Simplify right side
    31,709,853.42x = 816,450,837,134,698.38
  5. Step 5: Solve for x
    x = 816,450,837,134,698.38/31,709,853.42
  6. Step 6: Final answer
    x = 25,747,543.71

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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.