Home / 125,388,078.40-188,082,117.60-84,573,409.60

Finding the Fourth Proportional to 125,388,078.40, 188,082,117.60 and 84,573,409.60

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Solution

The fourth proportional to 125,388,078.40, 188,082,117.60 and 84,573,409.60 is: 126,860,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,388,078.40 : 188,082,117.60 = 84,573,409.60 : x
  2. Step 2: Convert to fraction form
    125,388,078.40/188,082,117.60 = 84,573,409.60/x
  3. Step 3: Cross multiply
    125,388,078.40x = 188,082,117.60 × 84,573,409.60
  4. Step 4: Simplify right side
    125,388,078.40x = 15,906,745,970,220,168
  5. Step 5: Solve for x
    x = 15,906,745,970,220,168/125,388,078.40
  6. Step 6: Final answer
    x = 126,860,114.40

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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.