Home / 20,119,020.40-30,186,403.80-7,340,816.80

Finding the Fourth Proportional to 20,119,020.40, 30,186,403.80 and 7,340,816.80

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Solution

The fourth proportional to 20,119,020.40, 30,186,403.80 and 7,340,816.80 is: 11,014,097.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119,020.40 : 30,186,403.80 = 7,340,816.80 : x
  2. Step 2: Convert to fraction form
    20,119,020.40/30,186,403.80 = 7,340,816.80/x
  3. Step 3: Cross multiply
    20,119,020.40x = 30,186,403.80 × 7,340,816.80
  4. Step 4: Simplify right side
    20,119,020.40x = 221,592,860,146,623.84
  5. Step 5: Solve for x
    x = 221,592,860,146,623.84/20,119,020.40
  6. Step 6: Final answer
    x = 11,014,097.89

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1.5x scale

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.