Home / 28,685,856.42-39,592,871.22-18,229,833.93

Finding the Fourth Proportional to 28,685,856.42, 39,592,871.22 and 18,229,833.93

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Solution

The fourth proportional to 28,685,856.42, 39,592,871.22 and 18,229,833.93 is: 25,161,231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685,856.42 : 39,592,871.22 = 18,229,833.93 : x
  2. Step 2: Convert to fraction form
    28,685,856.42/39,592,871.22 = 18,229,833.93/x
  3. Step 3: Cross multiply
    28,685,856.42x = 39,592,871.22 × 18,229,833.93
  4. Step 4: Simplify right side
    28,685,856.42x = 721,771,467,152,476.50
  5. Step 5: Solve for x
    x = 721,771,467,152,476.50/28,685,856.42
  6. Step 6: Final answer
    x = 25,161,231.26

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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.