Home / 213,887,616,007.70-320,831,424,011.55-191,572,195,841.30

Finding the Fourth Proportional to 213,887,616,007.70, 320,831,424,011.55 and 191,572,195,841.30

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Solution

The fourth proportional to 213,887,616,007.70, 320,831,424,011.55 and 191,572,195,841.30 is: 287,358,293,761.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,887,616,007.70 : 320,831,424,011.55 = 191,572,195,841.30 : x
  2. Step 2: Convert to fraction form
    213,887,616,007.70/320,831,424,011.55 = 191,572,195,841.30/x
  3. Step 3: Cross multiply
    213,887,616,007.70x = 320,831,424,011.55 × 191,572,195,841.30
  4. Step 4: Simplify right side
    213,887,616,007.70x = 61,462,380,392,783,806,464,000
  5. Step 5: Solve for x
    x = 61,462,380,392,783,806,464,000/213,887,616,007.70
  6. Step 6: Final answer
    x = 287,358,293,761.95

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Double scale
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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.