Home / 72,902,464.40-109,353,696.60-47,372,301.20

Finding the Fourth Proportional to 72,902,464.40, 109,353,696.60 and 47,372,301.20

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Solution

The fourth proportional to 72,902,464.40, 109,353,696.60 and 47,372,301.20 is: 71,058,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,902,464.40 : 109,353,696.60 = 47,372,301.20 : x
  2. Step 2: Convert to fraction form
    72,902,464.40/109,353,696.60 = 47,372,301.20/x
  3. Step 3: Cross multiply
    72,902,464.40x = 109,353,696.60 × 47,372,301.20
  4. Step 4: Simplify right side
    72,902,464.40x = 5,180,336,252,668,616
  5. Step 5: Solve for x
    x = 5,180,336,252,668,616/72,902,464.40
  6. Step 6: Final answer
    x = 71,058,451.80

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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.