Home / 147,517,281.42-203,568,501.38-81,436,357.45

Finding the Fourth Proportional to 147,517,281.42, 203,568,501.38 and 81,436,357.45

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Solution

The fourth proportional to 147,517,281.42, 203,568,501.38 and 81,436,357.45 is: 112,379,221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,517,281.42 : 203,568,501.38 = 81,436,357.45 : x
  2. Step 2: Convert to fraction form
    147,517,281.42/203,568,501.38 = 81,436,357.45/x
  3. Step 3: Cross multiply
    147,517,281.42x = 203,568,501.38 × 81,436,357.45
  4. Step 4: Simplify right side
    147,517,281.42x = 16,577,877,242,644,500
  5. Step 5: Solve for x
    x = 16,577,877,242,644,500/147,517,281.42
  6. Step 6: Final answer
    x = 112,379,221.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.