Home / 31,942,013.80-47,913,020.70-8,912,903.80

Finding the Fourth Proportional to 31,942,013.80, 47,913,020.70 and 8,912,903.80

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Solution

The fourth proportional to 31,942,013.80, 47,913,020.70 and 8,912,903.80 is: 13,369,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,942,013.80 : 47,913,020.70 = 8,912,903.80 : x
  2. Step 2: Convert to fraction form
    31,942,013.80/47,913,020.70 = 8,912,903.80/x
  3. Step 3: Cross multiply
    31,942,013.80x = 47,913,020.70 × 8,912,903.80
  4. Step 4: Simplify right side
    31,942,013.80x = 427,044,144,266,508.75
  5. Step 5: Solve for x
    x = 427,044,144,266,508.75/31,942,013.80
  6. Step 6: Final answer
    x = 13,369,355.70

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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.