Home / 21,315,138.39-29,415,056.85-11,767,717.53

Finding the Fourth Proportional to 21,315,138.39, 29,415,056.85 and 11,767,717.53

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Solution

The fourth proportional to 21,315,138.39, 29,415,056.85 and 11,767,717.53 is: 16,239,541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,138.39 : 29,415,056.85 = 11,767,717.53 : x
  2. Step 2: Convert to fraction form
    21,315,138.39/29,415,056.85 = 11,767,717.53/x
  3. Step 3: Cross multiply
    21,315,138.39x = 29,415,056.85 × 11,767,717.53
  4. Step 4: Simplify right side
    21,315,138.39x = 346,148,080,139,691.56
  5. Step 5: Solve for x
    x = 346,148,080,139,691.56/21,315,138.39
  6. Step 6: Final answer
    x = 16,239,541.77

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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.