Home / 6,398,465.60-8,782,881.45-5,657,072.60

Finding the Fourth Proportional to 6,398,465.60, 8,782,881.45 and 5,657,072.60

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Solution

The fourth proportional to 6,398,465.60, 8,782,881.45 and 5,657,072.60 is: 7,765,205.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398,465.60 : 8,782,881.45 = 5,657,072.60 : x
  2. Step 2: Convert to fraction form
    6,398,465.60/8,782,881.45 = 5,657,072.60/x
  3. Step 3: Cross multiply
    6,398,465.60x = 8,782,881.45 × 5,657,072.60
  4. Step 4: Simplify right side
    6,398,465.60x = 49,685,397,999,843.27
  5. Step 5: Solve for x
    x = 49,685,397,999,843.27/6,398,465.60
  6. Step 6: Final answer
    x = 7,765,205.15

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.