Home / 31,076,743.59-42,894,177.12-18,357,595.97

Finding the Fourth Proportional to 31,076,743.59, 42,894,177.12 and 18,357,595.97

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Solution

The fourth proportional to 31,076,743.59, 42,894,177.12 and 18,357,595.97 is: 25,338,368.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,076,743.59 : 42,894,177.12 = 18,357,595.97 : x
  2. Step 2: Convert to fraction form
    31,076,743.59/42,894,177.12 = 18,357,595.97/x
  3. Step 3: Cross multiply
    31,076,743.59x = 42,894,177.12 × 18,357,595.97
  4. Step 4: Simplify right side
    31,076,743.59x = 787,433,972,820,107.25
  5. Step 5: Solve for x
    x = 787,433,972,820,107.25/31,076,743.59
  6. Step 6: Final answer
    x = 25,338,368.24

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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.