Home / 828,689,320.40-1,243,183,279.80-344,064,117.20

Finding the Fourth Proportional to 828,689,320.40, 1,243,183,279.80 and 344,064,117.20

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Solution

The fourth proportional to 828,689,320.40, 1,243,183,279.80 and 344,064,117.20 is: 516,158,163.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,689,320.40 : 1,243,183,279.80 = 344,064,117.20 : x
  2. Step 2: Convert to fraction form
    828,689,320.40/1,243,183,279.80 = 344,064,117.20/x
  3. Step 3: Cross multiply
    828,689,320.40x = 1,243,183,279.80 × 344,064,117.20
  4. Step 4: Simplify right side
    828,689,320.40x = 427,734,757,682,187,584
  5. Step 5: Solve for x
    x = 427,734,757,682,187,584/828,689,320.40
  6. Step 6: Final answer
    x = 516,158,163.44

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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.