Home / 20,698,766.10-31,048,149.15-9,910,513.80

Finding the Fourth Proportional to 20,698,766.10, 31,048,149.15 and 9,910,513.80

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Solution

The fourth proportional to 20,698,766.10, 31,048,149.15 and 9,910,513.80 is: 14,865,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,766.10 : 31,048,149.15 = 9,910,513.80 : x
  2. Step 2: Convert to fraction form
    20,698,766.10/31,048,149.15 = 9,910,513.80/x
  3. Step 3: Cross multiply
    20,698,766.10x = 31,048,149.15 × 9,910,513.80
  4. Step 4: Simplify right side
    20,698,766.10x = 307,703,110,615,533.25
  5. Step 5: Solve for x
    x = 307,703,110,615,533.25/20,698,766.10
  6. Step 6: Final answer
    x = 14,865,770.70

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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.