Home / 517,961,168.96-776,941,747.68-287,820,184.64

Finding the Fourth Proportional to 517,961,168.96, 776,941,747.68 and 287,820,184.64

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Solution

The fourth proportional to 517,961,168.96, 776,941,747.68 and 287,820,184.64 is: 431,730,273.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,961,168.96 : 776,941,747.68 = 287,820,184.64 : x
  2. Step 2: Convert to fraction form
    517,961,168.96/776,941,747.68 = 287,820,184.64/x
  3. Step 3: Cross multiply
    517,961,168.96x = 776,941,747.68 × 287,820,184.64
  4. Step 4: Simplify right side
    517,961,168.96x = 223,619,517,271,781,856
  5. Step 5: Solve for x
    x = 223,619,517,271,781,856/517,961,168.96
  6. Step 6: Final answer
    x = 431,730,273.76

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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.