Home / 401,148,914.20-601,764,646.23-138,833,004.78

Finding the Fourth Proportional to 401,148,914.20, 601,764,646.23 and 138,833,004.78

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Solution

The fourth proportional to 401,148,914.20, 601,764,646.23 and 138,833,004.78 is: 208,263,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,148,914.20 : 601,764,646.23 = 138,833,004.78 : x
  2. Step 2: Convert to fraction form
    401,148,914.20/601,764,646.23 = 138,833,004.78/x
  3. Step 3: Cross multiply
    401,148,914.20x = 601,764,646.23 × 138,833,004.78
  4. Step 4: Simplify right side
    401,148,914.20x = 83,544,794,006,484,608
  5. Step 5: Solve for x
    x = 83,544,794,006,484,608/401,148,914.20
  6. Step 6: Final answer
    x = 208,263,791.95

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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.