Home / 440,058,640.20-660,087,960.30-285,090,444.60

Finding the Fourth Proportional to 440,058,640.20, 660,087,960.30 and 285,090,444.60

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Solution

The fourth proportional to 440,058,640.20, 660,087,960.30 and 285,090,444.60 is: 427,635,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,058,640.20 : 660,087,960.30 = 285,090,444.60 : x
  2. Step 2: Convert to fraction form
    440,058,640.20/660,087,960.30 = 285,090,444.60/x
  3. Step 3: Cross multiply
    440,058,640.20x = 660,087,960.30 × 285,090,444.60
  4. Step 4: Simplify right side
    440,058,640.20x = 188,184,770,077,034,144
  5. Step 5: Solve for x
    x = 188,184,770,077,034,144/440,058,640.20
  6. Step 6: Final answer
    x = 427,635,666.90

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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.