Home / 125,243,999.80-187,865,999.70-74,099,692.60

Finding the Fourth Proportional to 125,243,999.80, 187,865,999.70 and 74,099,692.60

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Solution

The fourth proportional to 125,243,999.80, 187,865,999.70 and 74,099,692.60 is: 111,149,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,243,999.80 : 187,865,999.70 = 74,099,692.60 : x
  2. Step 2: Convert to fraction form
    125,243,999.80/187,865,999.70 = 74,099,692.60/x
  3. Step 3: Cross multiply
    125,243,999.80x = 187,865,999.70 × 74,099,692.60
  4. Step 4: Simplify right side
    125,243,999.80x = 13,920,812,827,761,690
  5. Step 5: Solve for x
    x = 13,920,812,827,761,690/125,243,999.80
  6. Step 6: Final answer
    x = 111,149,538.90

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1.5x scale

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.