Home / 393,277,309,683.45-542,716,911,511.96-219,664,982,774.05

Finding the Fourth Proportional to 393,277,309,683.45, 542,716,911,511.96 and 219,664,982,774.05

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Solution

The fourth proportional to 393,277,309,683.45, 542,716,911,511.96 and 219,664,982,774.05 is: 303,134,450,127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,277,309,683.45 : 542,716,911,511.96 = 219,664,982,774.05 : x
  2. Step 2: Convert to fraction form
    393,277,309,683.45/542,716,911,511.96 = 219,664,982,774.05/x
  3. Step 3: Cross multiply
    393,277,309,683.45x = 542,716,911,511.96 × 219,664,982,774.05
  4. Step 4: Simplify right side
    393,277,309,683.45x = 119,215,901,018,460,306,538,496
  5. Step 5: Solve for x
    x = 119,215,901,018,460,306,538,496/393,277,309,683.45
  6. Step 6: Final answer
    x = 303,134,450,127.36

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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.