Home / 210,438,002.40-315,673,832.58-72,207,983.96

Finding the Fourth Proportional to 210,438,002.40, 315,673,832.58 and 72,207,983.96

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Solution

The fourth proportional to 210,438,002.40, 315,673,832.58 and 72,207,983.96 is: 108,317,750.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,438,002.40 : 315,673,832.58 = 72,207,983.96 : x
  2. Step 2: Convert to fraction form
    210,438,002.40/315,673,832.58 = 72,207,983.96/x
  3. Step 3: Cross multiply
    210,438,002.40x = 315,673,832.58 × 72,207,983.96
  4. Step 4: Simplify right side
    210,438,002.40x = 22,794,171,037,949,996
  5. Step 5: Solve for x
    x = 22,794,171,037,949,996/210,438,002.40
  6. Step 6: Final answer
    x = 108,317,750.49

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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.