Home / 15,487,314.21-21,373,015.64-8,518,530.74

Finding the Fourth Proportional to 15,487,314.21, 21,373,015.64 and 8,518,530.74

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Solution

The fourth proportional to 15,487,314.21, 21,373,015.64 and 8,518,530.74 is: 11,755,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487,314.21 : 21,373,015.64 = 8,518,530.74 : x
  2. Step 2: Convert to fraction form
    15,487,314.21/21,373,015.64 = 8,518,530.74/x
  3. Step 3: Cross multiply
    15,487,314.21x = 21,373,015.64 × 8,518,530.74
  4. Step 4: Simplify right side
    15,487,314.21x = 182,066,690,586,383.03
  5. Step 5: Solve for x
    x = 182,066,690,586,383.03/15,487,314.21
  6. Step 6: Final answer
    x = 11,755,859.55

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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.