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Finding the Fourth Proportional to 283,768,980.71, 391,601,020.16 and 153,388,788.71

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Solution

The fourth proportional to 283,768,980.71, 391,601,020.16 and 153,388,788.71 is: 211,676,434.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,768,980.71 : 391,601,020.16 = 153,388,788.71 : x
  2. Step 2: Convert to fraction form
    283,768,980.71/391,601,020.16 = 153,388,788.71/x
  3. Step 3: Cross multiply
    283,768,980.71x = 391,601,020.16 × 153,388,788.71
  4. Step 4: Simplify right side
    283,768,980.71x = 60,067,206,138,368,168
  5. Step 5: Solve for x
    x = 60,067,206,138,368,168/283,768,980.71
  6. Step 6: Final answer
    x = 211,676,434.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.