Home / 288,686,991.60-433,129,631.40-84,245,065.20

Finding the Fourth Proportional to 288,686,991.60, 433,129,631.40 and 84,245,065.20

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Solution

The fourth proportional to 288,686,991.60, 433,129,631.40 and 84,245,065.20 is: 126,396,530.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,686,991.60 : 433,129,631.40 = 84,245,065.20 : x
  2. Step 2: Convert to fraction form
    288,686,991.60/433,129,631.40 = 84,245,065.20/x
  3. Step 3: Cross multiply
    288,686,991.60x = 433,129,631.40 × 84,245,065.20
  4. Step 4: Simplify right side
    288,686,991.60x = 36,489,034,037,344,968
  5. Step 5: Solve for x
    x = 36,489,034,037,344,968/288,686,991.60
  6. Step 6: Final answer
    x = 126,396,530.15

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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.