Home / 121,105,012.96-181,737,750.84-66,555,692.56

Finding the Fourth Proportional to 121,105,012.96, 181,737,750.84 and 66,555,692.56

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Solution

The fourth proportional to 121,105,012.96, 181,737,750.84 and 66,555,692.56 is: 99,877,631.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,105,012.96 : 181,737,750.84 = 66,555,692.56 : x
  2. Step 2: Convert to fraction form
    121,105,012.96/181,737,750.84 = 66,555,692.56/x
  3. Step 3: Cross multiply
    121,105,012.96x = 181,737,750.84 × 66,555,692.56
  4. Step 4: Simplify right side
    121,105,012.96x = 12,095,681,871,452,922
  5. Step 5: Solve for x
    x = 12,095,681,871,452,922/121,105,012.96
  6. Step 6: Final answer
    x = 99,877,631.62

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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.