Home / 1,262,753,778.20-1,893,165,100.41-764,655,886.81

Finding the Fourth Proportional to 1,262,753,778.20, 1,893,165,100.41 and 764,655,886.81

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Solution

The fourth proportional to 1,262,753,778.20, 1,893,165,100.41 and 764,655,886.81 is: 1,146,399,134.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,753,778.20 : 1,893,165,100.41 = 764,655,886.81 : x
  2. Step 2: Convert to fraction form
    1,262,753,778.20/1,893,165,100.41 = 764,655,886.81/x
  3. Step 3: Cross multiply
    1,262,753,778.20x = 1,893,165,100.41 × 764,655,886.81
  4. Step 4: Simplify right side
    1,262,753,778.20x = 1,447,619,838,731,751,168
  5. Step 5: Solve for x
    x = 1,447,619,838,731,751,168/1,262,753,778.20
  6. Step 6: Final answer
    x = 1,146,399,134.75

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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.