Home / 20,740,632.30-31,110,948.45-18,685,727.10

Finding the Fourth Proportional to 20,740,632.30, 31,110,948.45 and 18,685,727.10

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Solution

The fourth proportional to 20,740,632.30, 31,110,948.45 and 18,685,727.10 is: 28,028,590.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740,632.30 : 31,110,948.45 = 18,685,727.10 : x
  2. Step 2: Convert to fraction form
    20,740,632.30/31,110,948.45 = 18,685,727.10/x
  3. Step 3: Cross multiply
    20,740,632.30x = 31,110,948.45 × 18,685,727.10
  4. Step 4: Simplify right side
    20,740,632.30x = 581,330,692,558,868
  5. Step 5: Solve for x
    x = 581,330,692,558,868/20,740,632.30
  6. Step 6: Final answer
    x = 28,028,590.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.