Home / 19,618,899.60-29,428,428.72-7,947,491.81

Finding the Fourth Proportional to 19,618,899.60, 29,428,428.72 and 7,947,491.81

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Solution

The fourth proportional to 19,618,899.60, 29,428,428.72 and 7,947,491.81 is: 11,921,269.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618,899.60 : 29,428,428.72 = 7,947,491.81 : x
  2. Step 2: Convert to fraction form
    19,618,899.60/29,428,428.72 = 7,947,491.81/x
  3. Step 3: Cross multiply
    19,618,899.60x = 29,428,428.72 × 7,947,491.81
  4. Step 4: Simplify right side
    19,618,899.60x = 233,882,196,086,226.62
  5. Step 5: Solve for x
    x = 233,882,196,086,226.62/19,618,899.60
  6. Step 6: Final answer
    x = 11,921,269.84

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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.