Home / 98,699,306-135,961,672.20-83,967,790.64

Finding the Fourth Proportional to 98,699,306, 135,961,672.20 and 83,967,790.64

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Solution

The fourth proportional to 98,699,306, 135,961,672.20 and 83,967,790.64 is: 115,668,505.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,699,306 : 135,961,672.20 = 83,967,790.64 : x
  2. Step 2: Convert to fraction form
    98,699,306/135,961,672.20 = 83,967,790.64/x
  3. Step 3: Cross multiply
    98,699,306x = 135,961,672.20 × 83,967,790.64
  4. Step 4: Simplify right side
    98,699,306x = 11,416,401,226,353,908
  5. Step 5: Solve for x
    x = 11,416,401,226,353,908/98,699,306
  6. Step 6: Final answer
    x = 115,668,505.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.