Home / 71,731,210.80-107,596,816.20-20,610,231.60

Finding the Fourth Proportional to 71,731,210.80, 107,596,816.20 and 20,610,231.60

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Solution

The fourth proportional to 71,731,210.80, 107,596,816.20 and 20,610,231.60 is: 30,915,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,731,210.80 : 107,596,816.20 = 20,610,231.60 : x
  2. Step 2: Convert to fraction form
    71,731,210.80/107,596,816.20 = 20,610,231.60/x
  3. Step 3: Cross multiply
    71,731,210.80x = 107,596,816.20 × 20,610,231.60
  4. Step 4: Simplify right side
    71,731,210.80x = 2,217,595,301,304,632.25
  5. Step 5: Solve for x
    x = 2,217,595,301,304,632.25/71,731,210.80
  6. Step 6: Final answer
    x = 30,915,347.40

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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.