Home / 168,438,614.70-252,657,922.05-40,787,798.70

Finding the Fourth Proportional to 168,438,614.70, 252,657,922.05 and 40,787,798.70

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Solution

The fourth proportional to 168,438,614.70, 252,657,922.05 and 40,787,798.70 is: 61,181,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,438,614.70 : 252,657,922.05 = 40,787,798.70 : x
  2. Step 2: Convert to fraction form
    168,438,614.70/252,657,922.05 = 40,787,798.70/x
  3. Step 3: Cross multiply
    168,438,614.70x = 252,657,922.05 × 40,787,798.70
  4. Step 4: Simplify right side
    168,438,614.70x = 10,305,360,464,535,692
  5. Step 5: Solve for x
    x = 10,305,360,464,535,692/168,438,614.70
  6. Step 6: Final answer
    x = 61,181,698.05

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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.