Home / 281,871,522,729.87-388,982,679,795.89-153,413,892,395.52

Finding the Fourth Proportional to 281,871,522,729.87, 388,982,679,795.89 and 153,413,892,395.52

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Solution

The fourth proportional to 281,871,522,729.87, 388,982,679,795.89 and 153,413,892,395.52 is: 211,711,159,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,871,522,729.87 : 388,982,679,795.89 = 153,413,892,395.52 : x
  2. Step 2: Convert to fraction form
    281,871,522,729.87/388,982,679,795.89 = 153,413,892,395.52/x
  3. Step 3: Cross multiply
    281,871,522,729.87x = 388,982,679,795.89 × 153,413,892,395.52
  4. Step 4: Simplify right side
    281,871,522,729.87x = 59,675,346,981,927,681,785,856
  5. Step 5: Solve for x
    x = 59,675,346,981,927,681,785,856/281,871,522,729.87
  6. Step 6: Final answer
    x = 211,711,159,765.21

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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.