Home / 231,180,785.73-319,075,831.94-137,147,127.30

Finding the Fourth Proportional to 231,180,785.73, 319,075,831.94 and 137,147,127.30

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Solution

The fourth proportional to 231,180,785.73, 319,075,831.94 and 137,147,127.30 is: 189,290,531.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,180,785.73 : 319,075,831.94 = 137,147,127.30 : x
  2. Step 2: Convert to fraction form
    231,180,785.73/319,075,831.94 = 137,147,127.30/x
  3. Step 3: Cross multiply
    231,180,785.73x = 319,075,831.94 × 137,147,127.30
  4. Step 4: Simplify right side
    231,180,785.73x = 43,760,333,740,742,856
  5. Step 5: Solve for x
    x = 43,760,333,740,742,856/231,180,785.73
  6. Step 6: Final answer
    x = 189,290,531.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.