Home / 125,989,935.40-188,984,903.10-85,175,266.60

Finding the Fourth Proportional to 125,989,935.40, 188,984,903.10 and 85,175,266.60

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Solution

The fourth proportional to 125,989,935.40, 188,984,903.10 and 85,175,266.60 is: 127,762,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,989,935.40 : 188,984,903.10 = 85,175,266.60 : x
  2. Step 2: Convert to fraction form
    125,989,935.40/188,984,903.10 = 85,175,266.60/x
  3. Step 3: Cross multiply
    125,989,935.40x = 188,984,903.10 × 85,175,266.60
  4. Step 4: Simplify right side
    125,989,935.40x = 16,096,839,504,917,664
  5. Step 5: Solve for x
    x = 16,096,839,504,917,664/125,989,935.40
  6. Step 6: Final answer
    x = 127,762,899.90

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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.