Home / 72,599,018.45-108,970,272.63-38,520,364.32

Finding the Fourth Proportional to 72,599,018.45, 108,970,272.63 and 38,520,364.32

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Solution

The fourth proportional to 72,599,018.45, 108,970,272.63 and 38,520,364.32 is: 57,818,613.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,599,018.45 : 108,970,272.63 = 38,520,364.32 : x
  2. Step 2: Convert to fraction form
    72,599,018.45/108,970,272.63 = 38,520,364.32/x
  3. Step 3: Cross multiply
    72,599,018.45x = 108,970,272.63 × 38,520,364.32
  4. Step 4: Simplify right side
    72,599,018.45x = 4,197,574,601,757,324.50
  5. Step 5: Solve for x
    x = 4,197,574,601,757,324.50/72,599,018.45
  6. Step 6: Final answer
    x = 57,818,613.69

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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.