Home / 57,212,734.46-78,952,643.39-31,107,909.67

Finding the Fourth Proportional to 57,212,734.46, 78,952,643.39 and 31,107,909.67

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Solution

The fourth proportional to 57,212,734.46, 78,952,643.39 and 31,107,909.67 is: 42,928,409.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,212,734.46 : 78,952,643.39 = 31,107,909.67 : x
  2. Step 2: Convert to fraction form
    57,212,734.46/78,952,643.39 = 31,107,909.67/x
  3. Step 3: Cross multiply
    57,212,734.46x = 78,952,643.39 × 31,107,909.67
  4. Step 4: Simplify right side
    57,212,734.46x = 2,456,051,698,664,230.50
  5. Step 5: Solve for x
    x = 2,456,051,698,664,230.50/57,212,734.46
  6. Step 6: Final answer
    x = 42,928,409.59

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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.