Home / 287,811,153.11-431,716,803.48-80,580,094.14

Finding the Fourth Proportional to 287,811,153.11, 431,716,803.48 and 80,580,094.14

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Solution

The fourth proportional to 287,811,153.11, 431,716,803.48 and 80,580,094.14 is: 120,870,161.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,811,153.11 : 431,716,803.48 = 80,580,094.14 : x
  2. Step 2: Convert to fraction form
    287,811,153.11/431,716,803.48 = 80,580,094.14/x
  3. Step 3: Cross multiply
    287,811,153.11x = 431,716,803.48 × 80,580,094.14
  4. Step 4: Simplify right side
    287,811,153.11x = 34,787,780,667,857,216
  5. Step 5: Solve for x
    x = 34,787,780,667,857,216/287,811,153.11
  6. Step 6: Final answer
    x = 120,870,161.88

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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.