Home / 125,988,782.40-188,983,173.60-39,753,622.80

Finding the Fourth Proportional to 125,988,782.40, 188,983,173.60 and 39,753,622.80

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Solution

The fourth proportional to 125,988,782.40, 188,983,173.60 and 39,753,622.80 is: 59,630,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,988,782.40 : 188,983,173.60 = 39,753,622.80 : x
  2. Step 2: Convert to fraction form
    125,988,782.40/188,983,173.60 = 39,753,622.80/x
  3. Step 3: Cross multiply
    125,988,782.40x = 188,983,173.60 × 39,753,622.80
  4. Step 4: Simplify right side
    125,988,782.40x = 7,512,765,798,841,317
  5. Step 5: Solve for x
    x = 7,512,765,798,841,317/125,988,782.40
  6. Step 6: Final answer
    x = 59,630,434.20

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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.