Home / 57,170,679.87-78,896,036.48-31,065,197.57

Finding the Fourth Proportional to 57,170,679.87, 78,896,036.48 and 31,065,197.57

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Solution

The fourth proportional to 57,170,679.87, 78,896,036.48 and 31,065,197.57 is: 42,870,243.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,170,679.87 : 78,896,036.48 = 31,065,197.57 : x
  2. Step 2: Convert to fraction form
    57,170,679.87/78,896,036.48 = 31,065,197.57/x
  3. Step 3: Cross multiply
    57,170,679.87x = 78,896,036.48 × 31,065,197.57
  4. Step 4: Simplify right side
    57,170,679.87x = 2,450,920,960,191,321
  5. Step 5: Solve for x
    x = 2,450,920,960,191,321/57,170,679.87
  6. Step 6: Final answer
    x = 42,870,243.38

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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.