Home / 72,867,720.60-109,313,828.10-21,754,906.20

Finding the Fourth Proportional to 72,867,720.60, 109,313,828.10 and 21,754,906.20

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Solution

The fourth proportional to 72,867,720.60, 109,313,828.10 and 21,754,906.20 is: 32,636,015.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,867,720.60 : 109,313,828.10 = 21,754,906.20 : x
  2. Step 2: Convert to fraction form
    72,867,720.60/109,313,828.10 = 21,754,906.20/x
  3. Step 3: Cross multiply
    72,867,720.60x = 109,313,828.10 × 21,754,906.20
  4. Step 4: Simplify right side
    72,867,720.60x = 2,378,112,076,678,424
  5. Step 5: Solve for x
    x = 2,378,112,076,678,424/72,867,720.60
  6. Step 6: Final answer
    x = 32,636,015.74

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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.