Home / 213,887,616,002.70-320,831,424,004.05-191,572,195,836.30

Finding the Fourth Proportional to 213,887,616,002.70, 320,831,424,004.05 and 191,572,195,836.30

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Solution

The fourth proportional to 213,887,616,002.70, 320,831,424,004.05 and 191,572,195,836.30 is: 287,358,293,754.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,887,616,002.70 : 320,831,424,004.05 = 191,572,195,836.30 : x
  2. Step 2: Convert to fraction form
    213,887,616,002.70/320,831,424,004.05 = 191,572,195,836.30/x
  3. Step 3: Cross multiply
    213,887,616,002.70x = 320,831,424,004.05 × 191,572,195,836.30
  4. Step 4: Simplify right side
    213,887,616,002.70x = 61,462,380,389,742,860,566,528
  5. Step 5: Solve for x
    x = 61,462,380,389,742,860,566,528/213,887,616,002.70
  6. Step 6: Final answer
    x = 287,358,293,754.45

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Double scale
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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.