Home / 72,902,465.40-109,353,698.10-47,372,302.20

Finding the Fourth Proportional to 72,902,465.40, 109,353,698.10 and 47,372,302.20

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Solution

The fourth proportional to 72,902,465.40, 109,353,698.10 and 47,372,302.20 is: 71,058,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,902,465.40 : 109,353,698.10 = 47,372,302.20 : x
  2. Step 2: Convert to fraction form
    72,902,465.40/109,353,698.10 = 47,372,302.20/x
  3. Step 3: Cross multiply
    72,902,465.40x = 109,353,698.10 × 47,372,302.20
  4. Step 4: Simplify right side
    72,902,465.40x = 5,180,336,433,080,766
  5. Step 5: Solve for x
    x = 5,180,336,433,080,766/72,902,465.40
  6. Step 6: Final answer
    x = 71,058,453.30

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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.