Home / 99,653,112.70-149,479,669.05-45,905,400.70

Finding the Fourth Proportional to 99,653,112.70, 149,479,669.05 and 45,905,400.70

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Solution

The fourth proportional to 99,653,112.70, 149,479,669.05 and 45,905,400.70 is: 68,858,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,653,112.70 : 149,479,669.05 = 45,905,400.70 : x
  2. Step 2: Convert to fraction form
    99,653,112.70/149,479,669.05 = 45,905,400.70/x
  3. Step 3: Cross multiply
    99,653,112.70x = 149,479,669.05 × 45,905,400.70
  4. Step 4: Simplify right side
    99,653,112.70x = 6,861,924,104,243,639
  5. Step 5: Solve for x
    x = 6,861,924,104,243,639/99,653,112.70
  6. Step 6: Final answer
    x = 68,858,101.05

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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.