Home / 122,807,400.74-169,413,031.52-73,212,828.48

Finding the Fourth Proportional to 122,807,400.74, 169,413,031.52 and 73,212,828.48

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Solution

The fourth proportional to 122,807,400.74, 169,413,031.52 and 73,212,828.48 is: 100,997,229.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,807,400.74 : 169,413,031.52 = 73,212,828.48 : x
  2. Step 2: Convert to fraction form
    122,807,400.74/169,413,031.52 = 73,212,828.48/x
  3. Step 3: Cross multiply
    122,807,400.74x = 169,413,031.52 × 73,212,828.48
  4. Step 4: Simplify right side
    122,807,400.74x = 12,403,207,218,950,596
  5. Step 5: Solve for x
    x = 12,403,207,218,950,596/122,807,400.74
  6. Step 6: Final answer
    x = 100,997,229.35

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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.