Home / 398,074,426.44-597,380,681.60-139,291,888.56

Finding the Fourth Proportional to 398,074,426.44, 597,380,681.60 and 139,291,888.56

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Solution

The fourth proportional to 398,074,426.44, 597,380,681.60 and 139,291,888.56 is: 209,031,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,074,426.44 : 597,380,681.60 = 139,291,888.56 : x
  2. Step 2: Convert to fraction form
    398,074,426.44/597,380,681.60 = 139,291,888.56/x
  3. Step 3: Cross multiply
    398,074,426.44x = 597,380,681.60 × 139,291,888.56
  4. Step 4: Simplify right side
    398,074,426.44x = 83,210,283,329,324,048
  5. Step 5: Solve for x
    x = 83,210,283,329,324,048/398,074,426.44
  6. Step 6: Final answer
    x = 209,031,974.43

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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.