Home / 56,949,506.45-78,589,926.97-30,843,426.57

Finding the Fourth Proportional to 56,949,506.45, 78,589,926.97 and 30,843,426.57

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Solution

The fourth proportional to 56,949,506.45, 78,589,926.97 and 30,843,426.57 is: 42,563,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,949,506.45 : 78,589,926.97 = 30,843,426.57 : x
  2. Step 2: Convert to fraction form
    56,949,506.45/78,589,926.97 = 30,843,426.57/x
  3. Step 3: Cross multiply
    56,949,506.45x = 78,589,926.97 × 30,843,426.57
  4. Step 4: Simplify right side
    56,949,506.45x = 2,423,982,641,640,857.50
  5. Step 5: Solve for x
    x = 2,423,982,641,640,857.50/56,949,506.45
  6. Step 6: Final answer
    x = 42,563,716.40

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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.