Home / 13,458,666.70-20,188,000.05-7,789,962.70

Finding the Fourth Proportional to 13,458,666.70, 20,188,000.05 and 7,789,962.70

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Solution

The fourth proportional to 13,458,666.70, 20,188,000.05 and 7,789,962.70 is: 11,684,944.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458,666.70 : 20,188,000.05 = 7,789,962.70 : x
  2. Step 2: Convert to fraction form
    13,458,666.70/20,188,000.05 = 7,789,962.70/x
  3. Step 3: Cross multiply
    13,458,666.70x = 20,188,000.05 × 7,789,962.70
  4. Step 4: Simplify right side
    13,458,666.70x = 157,263,767,377,098.16
  5. Step 5: Solve for x
    x = 157,263,767,377,098.16/13,458,666.70
  6. Step 6: Final answer
    x = 11,684,944.05

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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.