Home / 20,148,116.80-30,219,222.75-9,910,228.52

Finding the Fourth Proportional to 20,148,116.80, 30,219,222.75 and 9,910,228.52

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Solution

The fourth proportional to 20,148,116.80, 30,219,222.75 and 9,910,228.52 is: 14,863,890.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148,116.80 : 30,219,222.75 = 9,910,228.52 : x
  2. Step 2: Convert to fraction form
    20,148,116.80/30,219,222.75 = 9,910,228.52/x
  3. Step 3: Cross multiply
    20,148,116.80x = 30,219,222.75 × 9,910,228.52
  4. Step 4: Simplify right side
    20,148,116.80x = 299,479,403,149,282.81
  5. Step 5: Solve for x
    x = 299,479,403,149,282.81/20,148,116.80
  6. Step 6: Final answer
    x = 14,863,890.56

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1.5x scale

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.