Home / 20,698,838.60-31,048,257.90-9,910,586.30

Finding the Fourth Proportional to 20,698,838.60, 31,048,257.90 and 9,910,586.30

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Solution

The fourth proportional to 20,698,838.60, 31,048,257.90 and 9,910,586.30 is: 14,865,879.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,838.60 : 31,048,257.90 = 9,910,586.30 : x
  2. Step 2: Convert to fraction form
    20,698,838.60/31,048,257.90 = 9,910,586.30/x
  3. Step 3: Cross multiply
    20,698,838.60x = 31,048,257.90 × 9,910,586.30
  4. Step 4: Simplify right side
    20,698,838.60x = 307,706,439,382,606.75
  5. Step 5: Solve for x
    x = 307,706,439,382,606.75/20,698,838.60
  6. Step 6: Final answer
    x = 14,865,879.45

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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.