Home / 20,556,675.45-30,823,061.21-7,778,165.67

Finding the Fourth Proportional to 20,556,675.45, 30,823,061.21 and 7,778,165.67

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Solution

The fourth proportional to 20,556,675.45, 30,823,061.21 and 7,778,165.67 is: 11,662,726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556,675.45 : 30,823,061.21 = 7,778,165.67 : x
  2. Step 2: Convert to fraction form
    20,556,675.45/30,823,061.21 = 7,778,165.67/x
  3. Step 3: Cross multiply
    20,556,675.45x = 30,823,061.21 × 7,778,165.67
  4. Step 4: Simplify right side
    20,556,675.45x = 239,746,876,547,930.66
  5. Step 5: Solve for x
    x = 239,746,876,547,930.66/20,556,675.45
  6. Step 6: Final answer
    x = 11,662,726.16

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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.