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Finding the Fourth Proportional to 636,501,053.72, 954,751,844.24 and 286,338,118.12

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Solution

The fourth proportional to 636,501,053.72, 954,751,844.24 and 286,338,118.12 is: 429,507,295.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,501,053.72 : 954,751,844.24 = 286,338,118.12 : x
  2. Step 2: Convert to fraction form
    636,501,053.72/954,751,844.24 = 286,338,118.12/x
  3. Step 3: Cross multiply
    636,501,053.72x = 954,751,844.24 × 286,338,118.12
  4. Step 4: Simplify right side
    636,501,053.72x = 273,381,846,351,280,960
  5. Step 5: Solve for x
    x = 273,381,846,351,280,960/636,501,053.72
  6. Step 6: Final answer
    x = 429,507,295.79

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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.