Home / 40,117,215.60-55,360,204.92-21,782,081.52

Finding the Fourth Proportional to 40,117,215.60, 55,360,204.92 and 21,782,081.52

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Solution

The fourth proportional to 40,117,215.60, 55,360,204.92 and 21,782,081.52 is: 30,058,429.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,117,215.60 : 55,360,204.92 = 21,782,081.52 : x
  2. Step 2: Convert to fraction form
    40,117,215.60/55,360,204.92 = 21,782,081.52/x
  3. Step 3: Cross multiply
    40,117,215.60x = 55,360,204.92 × 21,782,081.52
  4. Step 4: Simplify right side
    40,117,215.60x = 1,205,860,496,531,345
  5. Step 5: Solve for x
    x = 1,205,860,496,531,345/40,117,215.60
  6. Step 6: Final answer
    x = 30,058,429.49

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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.