Home / 20,348,679.60-30,523,019.40-5,201,809.20

Finding the Fourth Proportional to 20,348,679.60, 30,523,019.40 and 5,201,809.20

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Solution

The fourth proportional to 20,348,679.60, 30,523,019.40 and 5,201,809.20 is: 7,802,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,679.60 : 30,523,019.40 = 5,201,809.20 : x
  2. Step 2: Convert to fraction form
    20,348,679.60/30,523,019.40 = 5,201,809.20/x
  3. Step 3: Cross multiply
    20,348,679.60x = 30,523,019.40 × 5,201,809.20
  4. Step 4: Simplify right side
    20,348,679.60x = 158,774,923,126,698.47
  5. Step 5: Solve for x
    x = 158,774,923,126,698.47/20,348,679.60
  6. Step 6: Final answer
    x = 7,802,713.80

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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.