Home / 764,578,141.65-1,146,863,939.27-211,878,991.35

Finding the Fourth Proportional to 764,578,141.65, 1,146,863,939.27 and 211,878,991.35

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Solution

The fourth proportional to 764,578,141.65, 1,146,863,939.27 and 211,878,991.35 is: 317,817,579.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,578,141.65 : 1,146,863,939.27 = 211,878,991.35 : x
  2. Step 2: Convert to fraction form
    764,578,141.65/1,146,863,939.27 = 211,878,991.35/x
  3. Step 3: Cross multiply
    764,578,141.65x = 1,146,863,939.27 × 211,878,991.35
  4. Step 4: Simplify right side
    764,578,141.65x = 242,996,374,667,155,872
  5. Step 5: Solve for x
    x = 242,996,374,667,155,872/764,578,141.65
  6. Step 6: Final answer
    x = 317,817,579.96

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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.