Home / 764,280,808.12-1,144,740,807.78-631,619,604.28

Finding the Fourth Proportional to 764,280,808.12, 1,144,740,807.78 and 631,619,604.28

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Solution

The fourth proportional to 764,280,808.12, 1,144,740,807.78 and 631,619,604.28 is: 946,040,680.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,280,808.12 : 1,144,740,807.78 = 631,619,604.28 : x
  2. Step 2: Convert to fraction form
    764,280,808.12/1,144,740,807.78 = 631,619,604.28/x
  3. Step 3: Cross multiply
    764,280,808.12x = 1,144,740,807.78 × 631,619,604.28
  4. Step 4: Simplify right side
    764,280,808.12x = 723,040,736,013,171,072
  5. Step 5: Solve for x
    x = 723,040,736,013,171,072/764,280,808.12
  6. Step 6: Final answer
    x = 946,040,680.77

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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.