Home / 515,450,443.29-711,321,727.55-283,663,435.29

Finding the Fourth Proportional to 515,450,443.29, 711,321,727.55 and 283,663,435.29

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Solution

The fourth proportional to 515,450,443.29, 711,321,727.55 and 283,663,435.29 is: 391,455,604.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,450,443.29 : 711,321,727.55 = 283,663,435.29 : x
  2. Step 2: Convert to fraction form
    515,450,443.29/711,321,727.55 = 283,663,435.29/x
  3. Step 3: Cross multiply
    515,450,443.29x = 711,321,727.55 × 283,663,435.29
  4. Step 4: Simplify right side
    515,450,443.29x = 201,775,964,831,832,128
  5. Step 5: Solve for x
    x = 201,775,964,831,832,128/515,450,443.29
  6. Step 6: Final answer
    x = 391,455,604.43

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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.