Home / 31,115,598-42,938,399.61-17,176,653.78

Finding the Fourth Proportional to 31,115,598, 42,938,399.61 and 17,176,653.78

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Solution

The fourth proportional to 31,115,598, 42,938,399.61 and 17,176,653.78 is: 23,703,160.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,115,598 : 42,938,399.61 = 17,176,653.78 : x
  2. Step 2: Convert to fraction form
    31,115,598/42,938,399.61 = 17,176,653.78/x
  3. Step 3: Cross multiply
    31,115,598x = 42,938,399.61 × 17,176,653.78
  4. Step 4: Simplify right side
    31,115,598x = 737,538,023,968,257.12
  5. Step 5: Solve for x
    x = 737,538,023,968,257.12/31,115,598
  6. Step 6: Final answer
    x = 23,703,160.84

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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.