Home / 15,786,530.20-21,785,411.55-8,543,186.20

Finding the Fourth Proportional to 15,786,530.20, 21,785,411.55 and 8,543,186.20

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Solution

The fourth proportional to 15,786,530.20, 21,785,411.55 and 8,543,186.20 is: 11,789,596.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786,530.20 : 21,785,411.55 = 8,543,186.20 : x
  2. Step 2: Convert to fraction form
    15,786,530.20/21,785,411.55 = 8,543,186.20/x
  3. Step 3: Cross multiply
    15,786,530.20x = 21,785,411.55 × 8,543,186.20
  4. Step 4: Simplify right side
    15,786,530.20x = 186,116,827,315,280.59
  5. Step 5: Solve for x
    x = 186,116,827,315,280.59/15,786,530.20
  6. Step 6: Final answer
    x = 11,789,596.89

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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.