Home / 20,108,218.40-30,170,200.80-7,330,014.80

Finding the Fourth Proportional to 20,108,218.40, 30,170,200.80 and 7,330,014.80

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Solution

The fourth proportional to 20,108,218.40, 30,170,200.80 and 7,330,014.80 is: 10,997,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108,218.40 : 30,170,200.80 = 7,330,014.80 : x
  2. Step 2: Convert to fraction form
    20,108,218.40/30,170,200.80 = 7,330,014.80/x
  3. Step 3: Cross multiply
    20,108,218.40x = 30,170,200.80 × 7,330,014.80
  4. Step 4: Simplify right side
    20,108,218.40x = 221,148,018,382,971.84
  5. Step 5: Solve for x
    x = 221,148,018,382,971.84/20,108,218.40
  6. Step 6: Final answer
    x = 10,997,892.20

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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.