Home / 20,119,021.90-30,186,406.05-7,340,818.30

Finding the Fourth Proportional to 20,119,021.90, 30,186,406.05 and 7,340,818.30

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Solution

The fourth proportional to 20,119,021.90, 30,186,406.05 and 7,340,818.30 is: 11,014,100.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119,021.90 : 30,186,406.05 = 7,340,818.30 : x
  2. Step 2: Convert to fraction form
    20,119,021.90/30,186,406.05 = 7,340,818.30/x
  3. Step 3: Cross multiply
    20,119,021.90x = 30,186,406.05 × 7,340,818.30
  4. Step 4: Simplify right side
    20,119,021.90x = 221,592,921,943,070.72
  5. Step 5: Solve for x
    x = 221,592,921,943,070.72/20,119,021.90
  6. Step 6: Final answer
    x = 11,014,100.14

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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.