Home / 131,051,298.30-196,702,918.65-66,428,072.70

Finding the Fourth Proportional to 131,051,298.30, 196,702,918.65 and 66,428,072.70

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Solution

The fourth proportional to 131,051,298.30, 196,702,918.65 and 66,428,072.70 is: 99,705,962.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,051,298.30 : 196,702,918.65 = 66,428,072.70 : x
  2. Step 2: Convert to fraction form
    131,051,298.30/196,702,918.65 = 66,428,072.70/x
  3. Step 3: Cross multiply
    131,051,298.30x = 196,702,918.65 × 66,428,072.70
  4. Step 4: Simplify right side
    131,051,298.30x = 13,066,595,780,384,386
  5. Step 5: Solve for x
    x = 13,066,595,780,384,386/131,051,298.30
  6. Step 6: Final answer
    x = 99,705,962.09

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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.