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Finding the Fourth Proportional to 72,181,806.70, 108,272,710.05 and 43,483,992.70

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Solution

The fourth proportional to 72,181,806.70, 108,272,710.05 and 43,483,992.70 is: 65,225,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,181,806.70 : 108,272,710.05 = 43,483,992.70 : x
  2. Step 2: Convert to fraction form
    72,181,806.70/108,272,710.05 = 43,483,992.70/x
  3. Step 3: Cross multiply
    72,181,806.70x = 108,272,710.05 × 43,483,992.70
  4. Step 4: Simplify right side
    72,181,806.70x = 4,708,129,733,423,417
  5. Step 5: Solve for x
    x = 4,708,129,733,423,417/72,181,806.70
  6. Step 6: Final answer
    x = 65,225,989.05

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Double scale
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Similar ratio
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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.