Home / 440,346,736.10-660,520,104.15-133,638,356.90

Finding the Fourth Proportional to 440,346,736.10, 660,520,104.15 and 133,638,356.90

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Solution

The fourth proportional to 440,346,736.10, 660,520,104.15 and 133,638,356.90 is: 200,457,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,346,736.10 : 660,520,104.15 = 133,638,356.90 : x
  2. Step 2: Convert to fraction form
    440,346,736.10/660,520,104.15 = 133,638,356.90/x
  3. Step 3: Cross multiply
    440,346,736.10x = 660,520,104.15 × 133,638,356.90
  4. Step 4: Simplify right side
    440,346,736.10x = 88,270,821,418,022,864
  5. Step 5: Solve for x
    x = 88,270,821,418,022,864/440,346,736.10
  6. Step 6: Final answer
    x = 200,457,535.35

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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.