Home / 20,210,061.60-30,315,092.40-7,428,905.55

Finding the Fourth Proportional to 20,210,061.60, 30,315,092.40 and 7,428,905.55

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Solution

The fourth proportional to 20,210,061.60, 30,315,092.40 and 7,428,905.55 is: 11,143,358.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210,061.60 : 30,315,092.40 = 7,428,905.55 : x
  2. Step 2: Convert to fraction form
    20,210,061.60/30,315,092.40 = 7,428,905.55/x
  3. Step 3: Cross multiply
    20,210,061.60x = 30,315,092.40 × 7,428,905.55
  4. Step 4: Simplify right side
    20,210,061.60x = 225,207,958,179,122.81
  5. Step 5: Solve for x
    x = 225,207,958,179,122.81/20,210,061.60
  6. Step 6: Final answer
    x = 11,143,358.33

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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.