Home / 15,515,905.40-23,284,355.70-6,991,854.20

Finding the Fourth Proportional to 15,515,905.40, 23,284,355.70 and 6,991,854.20

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Solution

The fourth proportional to 15,515,905.40, 23,284,355.70 and 6,991,854.20 is: 10,492,511.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515,905.40 : 23,284,355.70 = 6,991,854.20 : x
  2. Step 2: Convert to fraction form
    15,515,905.40/23,284,355.70 = 6,991,854.20/x
  3. Step 3: Cross multiply
    15,515,905.40x = 23,284,355.70 × 6,991,854.20
  4. Step 4: Simplify right side
    15,515,905.40x = 162,800,820,195,338.94
  5. Step 5: Solve for x
    x = 162,800,820,195,338.94/15,515,905.40
  6. Step 6: Final answer
    x = 10,492,511.78

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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.