Home / 43,143,943.10-64,479,512.52-31,496,841.62

Finding the Fourth Proportional to 43,143,943.10, 64,479,512.52 and 31,496,841.62

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Solution

The fourth proportional to 43,143,943.10, 64,479,512.52 and 31,496,841.62 is: 47,072,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,143,943.10 : 64,479,512.52 = 31,496,841.62 : x
  2. Step 2: Convert to fraction form
    43,143,943.10/64,479,512.52 = 31,496,841.62/x
  3. Step 3: Cross multiply
    43,143,943.10x = 64,479,512.52 × 31,496,841.62
  4. Step 4: Simplify right side
    43,143,943.10x = 2,030,900,993,378,534.50
  5. Step 5: Solve for x
    x = 2,030,900,993,378,534.50/43,143,943.10
  6. Step 6: Final answer
    x = 47,072,679.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.