Home / 205,870,538.10-309,044,955.60-124,081,768.20

Finding the Fourth Proportional to 205,870,538.10, 309,044,955.60 and 124,081,768.20

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Solution

The fourth proportional to 205,870,538.10, 309,044,955.60 and 124,081,768.20 is: 186,266,791.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,870,538.10 : 309,044,955.60 = 124,081,768.20 : x
  2. Step 2: Convert to fraction form
    205,870,538.10/309,044,955.60 = 124,081,768.20/x
  3. Step 3: Cross multiply
    205,870,538.10x = 309,044,955.60 × 124,081,768.20
  4. Step 4: Simplify right side
    205,870,538.10x = 38,346,844,544,138,496
  5. Step 5: Solve for x
    x = 38,346,844,544,138,496/205,870,538.10
  6. Step 6: Final answer
    x = 186,266,791.25

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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.