Home / 72,909,905.60-109,406,848.80-27,504,286.40

Finding the Fourth Proportional to 72,909,905.60, 109,406,848.80 and 27,504,286.40

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Solution

The fourth proportional to 72,909,905.60, 109,406,848.80 and 27,504,286.40 is: 41,272,269.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,909,905.60 : 109,406,848.80 = 27,504,286.40 : x
  2. Step 2: Convert to fraction form
    72,909,905.60/109,406,848.80 = 27,504,286.40/x
  3. Step 3: Cross multiply
    72,909,905.60x = 109,406,848.80 × 27,504,286.40
  4. Step 4: Simplify right side
    72,909,905.60x = 3,009,157,303,516,696
  5. Step 5: Solve for x
    x = 3,009,157,303,516,696/72,909,905.60
  6. Step 6: Final answer
    x = 41,272,269.92

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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.