Home / 80,931,387.61-111,678,563.33-45,647,248.33

Finding the Fourth Proportional to 80,931,387.61, 111,678,563.33 and 45,647,248.33

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Solution

The fourth proportional to 80,931,387.61, 111,678,563.33 and 45,647,248.33 is: 62,989,394.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,931,387.61 : 111,678,563.33 = 45,647,248.33 : x
  2. Step 2: Convert to fraction form
    80,931,387.61/111,678,563.33 = 45,647,248.33/x
  3. Step 3: Cross multiply
    80,931,387.61x = 111,678,563.33 × 45,647,248.33
  4. Step 4: Simplify right side
    80,931,387.61x = 5,097,819,113,233,905
  5. Step 5: Solve for x
    x = 5,097,819,113,233,905/80,931,387.61
  6. Step 6: Final answer
    x = 62,989,394.64

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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.