Home / 67,078,718.10-100,606,403.55-21,640,512.66

Finding the Fourth Proportional to 67,078,718.10, 100,606,403.55 and 21,640,512.66

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Solution

The fourth proportional to 67,078,718.10, 100,606,403.55 and 21,640,512.66 is: 32,457,002.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,078,718.10 : 100,606,403.55 = 21,640,512.66 : x
  2. Step 2: Convert to fraction form
    67,078,718.10/100,606,403.55 = 21,640,512.66/x
  3. Step 3: Cross multiply
    67,078,718.10x = 100,606,403.55 × 21,640,512.66
  4. Step 4: Simplify right side
    67,078,718.10x = 2,177,174,149,700,844
  5. Step 5: Solve for x
    x = 2,177,174,149,700,844/67,078,718.10
  6. Step 6: Final answer
    x = 32,457,002.93

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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.