Home / 57,170,877.40-78,896,310.33-31,065,394.69

Finding the Fourth Proportional to 57,170,877.40, 78,896,310.33 and 31,065,394.69

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Solution

The fourth proportional to 57,170,877.40, 78,896,310.33 and 31,065,394.69 is: 42,870,516.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,170,877.40 : 78,896,310.33 = 31,065,394.69 : x
  2. Step 2: Convert to fraction form
    57,170,877.40/78,896,310.33 = 31,065,394.69/x
  3. Step 3: Cross multiply
    57,170,877.40x = 78,896,310.33 × 31,065,394.69
  4. Step 4: Simplify right side
    57,170,877.40x = 2,450,945,019,986,174
  5. Step 5: Solve for x
    x = 2,450,945,019,986,174/57,170,877.40
  6. Step 6: Final answer
    x = 42,870,516.10

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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.