Home / 20,713,167.86-31,048,195.71-11,601,907.70

Finding the Fourth Proportional to 20,713,167.86, 31,048,195.71 and 11,601,907.70

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Solution

The fourth proportional to 20,713,167.86, 31,048,195.71 and 11,601,907.70 is: 17,390,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713,167.86 : 31,048,195.71 = 11,601,907.70 : x
  2. Step 2: Convert to fraction form
    20,713,167.86/31,048,195.71 = 11,601,907.70/x
  3. Step 3: Cross multiply
    20,713,167.86x = 31,048,195.71 × 11,601,907.70
  4. Step 4: Simplify right side
    20,713,167.86x = 360,218,300,878,955.94
  5. Step 5: Solve for x
    x = 360,218,300,878,955.94/20,713,167.86
  6. Step 6: Final answer
    x = 17,390,787.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.