Home / 18,245,078,115.72-25,178,207,797.62-9,900,745,827.72

Finding the Fourth Proportional to 18,245,078,115.72, 25,178,207,797.62 and 9,900,745,827.72

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Solution

The fourth proportional to 18,245,078,115.72, 25,178,207,797.62 and 9,900,745,827.72 is: 13,663,029,241.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245,078,115.72 : 25,178,207,797.62 = 9,900,745,827.72 : x
  2. Step 2: Convert to fraction form
    18,245,078,115.72/25,178,207,797.62 = 9,900,745,827.72/x
  3. Step 3: Cross multiply
    18,245,078,115.72x = 25,178,207,797.62 × 9,900,745,827.72
  4. Step 4: Simplify right side
    18,245,078,115.72x = 249,283,035,801,753,354,240
  5. Step 5: Solve for x
    x = 249,283,035,801,753,354,240/18,245,078,115.72
  6. Step 6: Final answer
    x = 13,663,029,241.13

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1.5x scale

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.