Home / 18,139,464-25,032,460.32-9,990,702

Finding the Fourth Proportional to 18,139,464, 25,032,460.32 and 9,990,702

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Solution

The fourth proportional to 18,139,464, 25,032,460.32 and 9,990,702 is: 13,787,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,464 : 25,032,460.32 = 9,990,702 : x
  2. Step 2: Convert to fraction form
    18,139,464/25,032,460.32 = 9,990,702/x
  3. Step 3: Cross multiply
    18,139,464x = 25,032,460.32 × 9,990,702
  4. Step 4: Simplify right side
    18,139,464x = 250,091,851,383,944.66
  5. Step 5: Solve for x
    x = 250,091,851,383,944.66/18,139,464
  6. Step 6: Final answer
    x = 13,787,168.76

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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.