Home / 7,800,581.40-11,700,872.10-5,249,664.60

Finding the Fourth Proportional to 7,800,581.40, 11,700,872.10 and 5,249,664.60

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Solution

The fourth proportional to 7,800,581.40, 11,700,872.10 and 5,249,664.60 is: 7,874,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800,581.40 : 11,700,872.10 = 5,249,664.60 : x
  2. Step 2: Convert to fraction form
    7,800,581.40/11,700,872.10 = 5,249,664.60/x
  3. Step 3: Cross multiply
    7,800,581.40x = 11,700,872.10 × 5,249,664.60
  4. Step 4: Simplify right side
    7,800,581.40x = 61,425,654,052,497.66
  5. Step 5: Solve for x
    x = 61,425,654,052,497.66/7,800,581.40
  6. Step 6: Final answer
    x = 7,874,496.90

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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.