Home / 207,245,718.15-310,965,652.86-102,143,765.40

Finding the Fourth Proportional to 207,245,718.15, 310,965,652.86 and 102,143,765.40

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Solution

The fourth proportional to 207,245,718.15, 310,965,652.86 and 102,143,765.40 is: 153,263,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,245,718.15 : 310,965,652.86 = 102,143,765.40 : x
  2. Step 2: Convert to fraction form
    207,245,718.15/310,965,652.86 = 102,143,765.40/x
  3. Step 3: Cross multiply
    207,245,718.15x = 310,965,652.86 × 102,143,765.40
  4. Step 4: Simplify right side
    207,245,718.15x = 31,763,202,693,189,684
  5. Step 5: Solve for x
    x = 31,763,202,693,189,684/207,245,718.15
  6. Step 6: Final answer
    x = 153,263,493.10

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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.