Home / 72,759,009.40-109,138,514.10-36,373,015.60

Finding the Fourth Proportional to 72,759,009.40, 109,138,514.10 and 36,373,015.60

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Solution

The fourth proportional to 72,759,009.40, 109,138,514.10 and 36,373,015.60 is: 54,559,523.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,759,009.40 : 109,138,514.10 = 36,373,015.60 : x
  2. Step 2: Convert to fraction form
    72,759,009.40/109,138,514.10 = 36,373,015.60/x
  3. Step 3: Cross multiply
    72,759,009.40x = 109,138,514.10 × 36,373,015.60
  4. Step 4: Simplify right side
    72,759,009.40x = 3,969,696,875,920,120
  5. Step 5: Solve for x
    x = 3,969,696,875,920,120/72,759,009.40
  6. Step 6: Final answer
    x = 54,559,523.40

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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.