Home / 191,787,008.40-287,680,512.60-84,081,632.40

Finding the Fourth Proportional to 191,787,008.40, 287,680,512.60 and 84,081,632.40

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Solution

The fourth proportional to 191,787,008.40, 287,680,512.60 and 84,081,632.40 is: 126,122,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,787,008.40 : 287,680,512.60 = 84,081,632.40 : x
  2. Step 2: Convert to fraction form
    191,787,008.40/287,680,512.60 = 84,081,632.40/x
  3. Step 3: Cross multiply
    191,787,008.40x = 287,680,512.60 × 84,081,632.40
  4. Step 4: Simplify right side
    191,787,008.40x = 24,188,647,109,076,772
  5. Step 5: Solve for x
    x = 24,188,647,109,076,772/191,787,008.40
  6. Step 6: Final answer
    x = 126,122,448.60

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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.