Home / 100,399,386.42-150,662,786.88-42,892,090.20

Finding the Fourth Proportional to 100,399,386.42, 150,662,786.88 and 42,892,090.20

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Solution

The fourth proportional to 100,399,386.42, 150,662,786.88 and 42,892,090.20 is: 64,365,351.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,399,386.42 : 150,662,786.88 = 42,892,090.20 : x
  2. Step 2: Convert to fraction form
    100,399,386.42/150,662,786.88 = 42,892,090.20/x
  3. Step 3: Cross multiply
    100,399,386.42x = 150,662,786.88 × 42,892,090.20
  4. Step 4: Simplify right side
    100,399,386.42x = 6,462,241,844,640,337
  5. Step 5: Solve for x
    x = 6,462,241,844,640,337/100,399,386.42
  6. Step 6: Final answer
    x = 64,365,351.97

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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.