Home / 19,991,278.28-29,986,917.41-4,845,209.78

Finding the Fourth Proportional to 19,991,278.28, 29,986,917.41 and 4,845,209.78

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Solution

The fourth proportional to 19,991,278.28, 29,986,917.41 and 4,845,209.78 is: 7,267,814.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991,278.28 : 29,986,917.41 = 4,845,209.78 : x
  2. Step 2: Convert to fraction form
    19,991,278.28/29,986,917.41 = 4,845,209.78/x
  3. Step 3: Cross multiply
    19,991,278.28x = 29,986,917.41 × 4,845,209.78
  4. Step 4: Simplify right side
    19,991,278.28x = 145,292,905,594,064.59
  5. Step 5: Solve for x
    x = 145,292,905,594,064.59/19,991,278.28
  6. Step 6: Final answer
    x = 7,267,814.67

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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.