Home / 15,708,720.42-21,678,164.19-8,833,142.34

Finding the Fourth Proportional to 15,708,720.42, 21,678,164.19 and 8,833,142.34

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Solution

The fourth proportional to 15,708,720.42, 21,678,164.19 and 8,833,142.34 is: 12,189,809.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708,720.42 : 21,678,164.19 = 8,833,142.34 : x
  2. Step 2: Convert to fraction form
    15,708,720.42/21,678,164.19 = 8,833,142.34/x
  3. Step 3: Cross multiply
    15,708,720.42x = 21,678,164.19 × 8,833,142.34
  4. Step 4: Simplify right side
    15,708,720.42x = 191,486,309,960,160.81
  5. Step 5: Solve for x
    x = 191,486,309,960,160.81/15,708,720.42
  6. Step 6: Final answer
    x = 12,189,809.54

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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.