Home / 57,212,740.42-78,952,651.58-31,107,915.60

Finding the Fourth Proportional to 57,212,740.42, 78,952,651.58 and 31,107,915.60

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Solution

The fourth proportional to 57,212,740.42, 78,952,651.58 and 31,107,915.60 is: 42,928,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,212,740.42 : 78,952,651.58 = 31,107,915.60 : x
  2. Step 2: Convert to fraction form
    57,212,740.42/78,952,651.58 = 31,107,915.60/x
  3. Step 3: Cross multiply
    57,212,740.42x = 78,952,651.58 × 31,107,915.60
  4. Step 4: Simplify right side
    57,212,740.42x = 2,456,052,421,746,846.50
  5. Step 5: Solve for x
    x = 2,456,052,421,746,846.50/57,212,740.42
  6. Step 6: Final answer
    x = 42,928,417.76

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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.