Home / 798,671,125.80-1,198,006,688.70-540,682,108.20

Finding the Fourth Proportional to 798,671,125.80, 1,198,006,688.70 and 540,682,108.20

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Solution

The fourth proportional to 798,671,125.80, 1,198,006,688.70 and 540,682,108.20 is: 811,023,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,671,125.80 : 1,198,006,688.70 = 540,682,108.20 : x
  2. Step 2: Convert to fraction form
    798,671,125.80/1,198,006,688.70 = 540,682,108.20/x
  3. Step 3: Cross multiply
    798,671,125.80x = 1,198,006,688.70 × 540,682,108.20
  4. Step 4: Simplify right side
    798,671,125.80x = 647,740,782,084,017,152
  5. Step 5: Solve for x
    x = 647,740,782,084,017,152/798,671,125.80
  6. Step 6: Final answer
    x = 811,023,162.30

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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.