Home / 20,885,398.24-28,823,673.36-12,186,373.36

Finding the Fourth Proportional to 20,885,398.24, 28,823,673.36 and 12,186,373.36

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Solution

The fourth proportional to 20,885,398.24, 28,823,673.36 and 12,186,373.36 is: 16,818,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,398.24 : 28,823,673.36 = 12,186,373.36 : x
  2. Step 2: Convert to fraction form
    20,885,398.24/28,823,673.36 = 12,186,373.36/x
  3. Step 3: Cross multiply
    20,885,398.24x = 28,823,673.36 × 12,186,373.36
  4. Step 4: Simplify right side
    20,885,398.24x = 351,256,045,171,645.69
  5. Step 5: Solve for x
    x = 351,256,045,171,645.69/20,885,398.24
  6. Step 6: Final answer
    x = 16,818,259.40

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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.