Home / 145,542,002.30-218,313,003.45-72,770,014.70

Finding the Fourth Proportional to 145,542,002.30, 218,313,003.45 and 72,770,014.70

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Solution

The fourth proportional to 145,542,002.30, 218,313,003.45 and 72,770,014.70 is: 109,155,022.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,542,002.30 : 218,313,003.45 = 72,770,014.70 : x
  2. Step 2: Convert to fraction form
    145,542,002.30/218,313,003.45 = 72,770,014.70/x
  3. Step 3: Cross multiply
    145,542,002.30x = 218,313,003.45 × 72,770,014.70
  4. Step 4: Simplify right side
    145,542,002.30x = 15,886,640,470,257,650
  5. Step 5: Solve for x
    x = 15,886,640,470,257,650/145,542,002.30
  6. Step 6: Final answer
    x = 109,155,022.05

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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.