Home / 13,331,646.10-18,397,671.62-7,220,074.60

Finding the Fourth Proportional to 13,331,646.10, 18,397,671.62 and 7,220,074.60

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Solution

The fourth proportional to 13,331,646.10, 18,397,671.62 and 7,220,074.60 is: 9,963,702.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331,646.10 : 18,397,671.62 = 7,220,074.60 : x
  2. Step 2: Convert to fraction form
    13,331,646.10/18,397,671.62 = 7,220,074.60/x
  3. Step 3: Cross multiply
    13,331,646.10x = 18,397,671.62 × 7,220,074.60
  4. Step 4: Simplify right side
    13,331,646.10x = 132,832,561,480,608.30
  5. Step 5: Solve for x
    x = 132,832,561,480,608.30/13,331,646.10
  6. Step 6: Final answer
    x = 9,963,702.94

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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.