Home / 57,091,858.56-78,787,520.64-30,986,689.32

Finding the Fourth Proportional to 57,091,858.56, 78,787,520.64 and 30,986,689.32

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Solution

The fourth proportional to 57,091,858.56, 78,787,520.64 and 30,986,689.32 is: 42,762,041.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,858.56 : 78,787,520.64 = 30,986,689.32 : x
  2. Step 2: Convert to fraction form
    57,091,858.56/78,787,520.64 = 30,986,689.32/x
  3. Step 3: Cross multiply
    57,091,858.56x = 78,787,520.64 × 30,986,689.32
  4. Step 4: Simplify right side
    57,091,858.56x = 2,441,364,424,364,767.50
  5. Step 5: Solve for x
    x = 2,441,364,424,364,767.50/57,091,858.56
  6. Step 6: Final answer
    x = 42,762,041.49

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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.