Home / 120,299,518.46-166,008,890.13-65,294,193.98

Finding the Fourth Proportional to 120,299,518.46, 166,008,890.13 and 65,294,193.98

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Solution

The fourth proportional to 120,299,518.46, 166,008,890.13 and 65,294,193.98 is: 90,103,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,299,518.46 : 166,008,890.13 = 65,294,193.98 : x
  2. Step 2: Convert to fraction form
    120,299,518.46/166,008,890.13 = 65,294,193.98/x
  3. Step 3: Cross multiply
    120,299,518.46x = 166,008,890.13 × 65,294,193.98
  4. Step 4: Simplify right side
    120,299,518.46x = 10,839,416,674,552,726
  5. Step 5: Solve for x
    x = 10,839,416,674,552,726/120,299,518.46
  6. Step 6: Final answer
    x = 90,103,574.92

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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.