Home / 122,723,198.40-169,220,686.32-100,326,280.44

Finding the Fourth Proportional to 122,723,198.40, 169,220,686.32 and 100,326,280.44

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Solution

The fourth proportional to 122,723,198.40, 169,220,686.32 and 100,326,280.44 is: 138,338,001.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,723,198.40 : 169,220,686.32 = 100,326,280.44 : x
  2. Step 2: Convert to fraction form
    122,723,198.40/169,220,686.32 = 100,326,280.44/x
  3. Step 3: Cross multiply
    122,723,198.40x = 169,220,686.32 × 100,326,280.44
  4. Step 4: Simplify right side
    122,723,198.40x = 16,977,282,031,989,590
  5. Step 5: Solve for x
    x = 16,977,282,031,989,590/122,723,198.40
  6. Step 6: Final answer
    x = 138,338,001.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.