Home / 213,545,046.30-320,317,569.45-190,870,230.30

Finding the Fourth Proportional to 213,545,046.30, 320,317,569.45 and 190,870,230.30

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Solution

The fourth proportional to 213,545,046.30, 320,317,569.45 and 190,870,230.30 is: 286,305,345.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,545,046.30 : 320,317,569.45 = 190,870,230.30 : x
  2. Step 2: Convert to fraction form
    213,545,046.30/320,317,569.45 = 190,870,230.30/x
  3. Step 3: Cross multiply
    213,545,046.30x = 320,317,569.45 × 190,870,230.30
  4. Step 4: Simplify right side
    213,545,046.30x = 61,139,088,250,057,744
  5. Step 5: Solve for x
    x = 61,139,088,250,057,744/213,545,046.30
  6. Step 6: Final answer
    x = 286,305,345.45

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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.