Home / 209,856,031.80-314,784,047.70-196,251,142.20

Finding the Fourth Proportional to 209,856,031.80, 314,784,047.70 and 196,251,142.20

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Solution

The fourth proportional to 209,856,031.80, 314,784,047.70 and 196,251,142.20 is: 294,376,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,856,031.80 : 314,784,047.70 = 196,251,142.20 : x
  2. Step 2: Convert to fraction form
    209,856,031.80/314,784,047.70 = 196,251,142.20/x
  3. Step 3: Cross multiply
    209,856,031.80x = 314,784,047.70 × 196,251,142.20
  4. Step 4: Simplify right side
    209,856,031.80x = 61,776,728,907,464,280
  5. Step 5: Solve for x
    x = 61,776,728,907,464,280/209,856,031.80
  6. Step 6: Final answer
    x = 294,376,713.30

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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.