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Finding the Fourth Proportional to 636,501,015.96, 954,751,788.60 and 286,338,080.76

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Solution

The fourth proportional to 636,501,015.96, 954,751,788.60 and 286,338,080.76 is: 429,507,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,501,015.96 : 954,751,788.60 = 286,338,080.76 : x
  2. Step 2: Convert to fraction form
    636,501,015.96/954,751,788.60 = 286,338,080.76/x
  3. Step 3: Cross multiply
    636,501,015.96x = 954,751,788.60 × 286,338,080.76
  4. Step 4: Simplify right side
    636,501,015.96x = 273,381,794,749,901,248
  5. Step 5: Solve for x
    x = 273,381,794,749,901,248/636,501,015.96
  6. Step 6: Final answer
    x = 429,507,240.20

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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.