Home / 407,143,470.37-610,436,399.32-207,335,985.16

Finding the Fourth Proportional to 407,143,470.37, 610,436,399.32 and 207,335,985.16

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Solution

The fourth proportional to 407,143,470.37, 610,436,399.32 and 207,335,985.16 is: 310,861,996.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,143,470.37 : 610,436,399.32 = 207,335,985.16 : x
  2. Step 2: Convert to fraction form
    407,143,470.37/610,436,399.32 = 207,335,985.16/x
  3. Step 3: Cross multiply
    407,143,470.37x = 610,436,399.32 × 207,335,985.16
  4. Step 4: Simplify right side
    407,143,470.37x = 126,565,432,230,535,360
  5. Step 5: Solve for x
    x = 126,565,432,230,535,360/407,143,470.37
  6. Step 6: Final answer
    x = 310,861,996.92

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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.