Home / 125,989,928.40-188,984,892.60-85,175,259.60

Finding the Fourth Proportional to 125,989,928.40, 188,984,892.60 and 85,175,259.60

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Solution

The fourth proportional to 125,989,928.40, 188,984,892.60 and 85,175,259.60 is: 127,762,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,989,928.40 : 188,984,892.60 = 85,175,259.60 : x
  2. Step 2: Convert to fraction form
    125,989,928.40/188,984,892.60 = 85,175,259.60/x
  3. Step 3: Cross multiply
    125,989,928.40x = 188,984,892.60 × 85,175,259.60
  4. Step 4: Simplify right side
    125,989,928.40x = 16,096,837,287,683,118
  5. Step 5: Solve for x
    x = 16,096,837,287,683,118/125,989,928.40
  6. Step 6: Final answer
    x = 127,762,889.40

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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.