Home / 213,887,616,003.70-320,831,424,005.55-191,572,195,837.30

Finding the Fourth Proportional to 213,887,616,003.70, 320,831,424,005.55 and 191,572,195,837.30

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Solution

The fourth proportional to 213,887,616,003.70, 320,831,424,005.55 and 191,572,195,837.30 is: 287,358,293,755.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,887,616,003.70 : 320,831,424,005.55 = 191,572,195,837.30 : x
  2. Step 2: Convert to fraction form
    213,887,616,003.70/320,831,424,005.55 = 191,572,195,837.30/x
  3. Step 3: Cross multiply
    213,887,616,003.70x = 320,831,424,005.55 × 191,572,195,837.30
  4. Step 4: Simplify right side
    213,887,616,003.70x = 61,462,380,390,351,051,423,744
  5. Step 5: Solve for x
    x = 61,462,380,390,351,051,423,744/213,887,616,003.70
  6. Step 6: Final answer
    x = 287,358,293,755.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.