Home / 207,245,719.15-310,965,654.36-102,143,766.40

Finding the Fourth Proportional to 207,245,719.15, 310,965,654.36 and 102,143,766.40

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Solution

The fourth proportional to 207,245,719.15, 310,965,654.36 and 102,143,766.40 is: 153,263,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,245,719.15 : 310,965,654.36 = 102,143,766.40 : x
  2. Step 2: Convert to fraction form
    207,245,719.15/310,965,654.36 = 102,143,766.40/x
  3. Step 3: Cross multiply
    207,245,719.15x = 310,965,654.36 × 102,143,766.40
  4. Step 4: Simplify right side
    207,245,719.15x = 31,763,203,157,370,984
  5. Step 5: Solve for x
    x = 31,763,203,157,370,984/207,245,719.15
  6. Step 6: Final answer
    x = 153,263,494.60

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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.