Home / 828,689,320.90-1,243,183,280.55-344,064,117.70

Finding the Fourth Proportional to 828,689,320.90, 1,243,183,280.55 and 344,064,117.70

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Solution

The fourth proportional to 828,689,320.90, 1,243,183,280.55 and 344,064,117.70 is: 516,158,164.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,689,320.90 : 1,243,183,280.55 = 344,064,117.70 : x
  2. Step 2: Convert to fraction form
    828,689,320.90/1,243,183,280.55 = 344,064,117.70/x
  3. Step 3: Cross multiply
    828,689,320.90x = 1,243,183,280.55 × 344,064,117.70
  4. Step 4: Simplify right side
    828,689,320.90x = 427,734,758,561,827,264
  5. Step 5: Solve for x
    x = 427,734,758,561,827,264/828,689,320.90
  6. Step 6: Final answer
    x = 516,158,164.19

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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.