Home / 153,795,799.76-212,238,880.44-83,231,418.56

Finding the Fourth Proportional to 153,795,799.76, 212,238,880.44 and 83,231,418.56

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Solution

The fourth proportional to 153,795,799.76, 212,238,880.44 and 83,231,418.56 is: 114,859,723.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,795,799.76 : 212,238,880.44 = 83,231,418.56 : x
  2. Step 2: Convert to fraction form
    153,795,799.76/212,238,880.44 = 83,231,418.56/x
  3. Step 3: Cross multiply
    153,795,799.76x = 212,238,880.44 × 83,231,418.56
  4. Step 4: Simplify right side
    153,795,799.76x = 17,664,943,092,607,438
  5. Step 5: Solve for x
    x = 17,664,943,092,607,438/153,795,799.76
  6. Step 6: Final answer
    x = 114,859,723.87

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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.