Home / 74,607,718.92-111,911,778.06-20,755,036.68

Finding the Fourth Proportional to 74,607,718.92, 111,911,778.06 and 20,755,036.68

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Solution

The fourth proportional to 74,607,718.92, 111,911,778.06 and 20,755,036.68 is: 31,132,610.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,607,718.92 : 111,911,778.06 = 20,755,036.68 : x
  2. Step 2: Convert to fraction form
    74,607,718.92/111,911,778.06 = 20,755,036.68/x
  3. Step 3: Cross multiply
    74,607,718.92x = 111,911,778.06 × 20,755,036.68
  4. Step 4: Simplify right side
    74,607,718.92x = 2,322,733,058,559,319.50
  5. Step 5: Solve for x
    x = 2,322,733,058,559,319.50/74,607,718.92
  6. Step 6: Final answer
    x = 31,132,610.57

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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.