Home / 15,487,731.09-21,373,086.66-8,612,065.53

Finding the Fourth Proportional to 15,487,731.09, 21,373,086.66 and 8,612,065.53

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Solution

The fourth proportional to 15,487,731.09, 21,373,086.66 and 8,612,065.53 is: 11,884,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487,731.09 : 21,373,086.66 = 8,612,065.53 : x
  2. Step 2: Convert to fraction form
    15,487,731.09/21,373,086.66 = 8,612,065.53/x
  3. Step 3: Cross multiply
    15,487,731.09x = 21,373,086.66 × 8,612,065.53
  4. Step 4: Simplify right side
    15,487,731.09x = 184,066,422,894,288.81
  5. Step 5: Solve for x
    x = 184,066,422,894,288.81/15,487,731.09
  6. Step 6: Final answer
    x = 11,884,660.30

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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.