Home / 31,503,357.40-47,160,557.70-18,717,280.60

Finding the Fourth Proportional to 31,503,357.40, 47,160,557.70 and 18,717,280.60

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Solution

The fourth proportional to 31,503,357.40, 47,160,557.70 and 18,717,280.60 is: 28,019,787.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503,357.40 : 47,160,557.70 = 18,717,280.60 : x
  2. Step 2: Convert to fraction form
    31,503,357.40/47,160,557.70 = 18,717,280.60/x
  3. Step 3: Cross multiply
    31,503,357.40x = 47,160,557.70 × 18,717,280.60
  4. Step 4: Simplify right side
    31,503,357.40x = 882,717,391,723,390.75
  5. Step 5: Solve for x
    x = 882,717,391,723,390.75/31,503,357.40
  6. Step 6: Final answer
    x = 28,019,787.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.