Home / 781,393,439.12-1,171,198,583.17-314,756,271.43

Finding the Fourth Proportional to 781,393,439.12, 1,171,198,583.17 and 314,756,271.43

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Solution

The fourth proportional to 781,393,439.12, 1,171,198,583.17 and 314,756,271.43 is: 471,775,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,393,439.12 : 1,171,198,583.17 = 314,756,271.43 : x
  2. Step 2: Convert to fraction form
    781,393,439.12/1,171,198,583.17 = 314,756,271.43/x
  3. Step 3: Cross multiply
    781,393,439.12x = 1,171,198,583.17 × 314,756,271.43
  4. Step 4: Simplify right side
    781,393,439.12x = 368,642,099,135,258,176
  5. Step 5: Solve for x
    x = 368,642,099,135,258,176/781,393,439.12
  6. Step 6: Final answer
    x = 471,775,267.98

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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.