Home / 72,171,024.30-108,256,536.45-67,069,190.70

Finding the Fourth Proportional to 72,171,024.30, 108,256,536.45 and 67,069,190.70

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Solution

The fourth proportional to 72,171,024.30, 108,256,536.45 and 67,069,190.70 is: 100,603,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,024.30 : 108,256,536.45 = 67,069,190.70 : x
  2. Step 2: Convert to fraction form
    72,171,024.30/108,256,536.45 = 67,069,190.70/x
  3. Step 3: Cross multiply
    72,171,024.30x = 108,256,536.45 × 67,069,190.70
  4. Step 4: Simplify right side
    72,171,024.30x = 7,260,678,287,686,552
  5. Step 5: Solve for x
    x = 7,260,678,287,686,552/72,171,024.30
  6. Step 6: Final answer
    x = 100,603,786.05

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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.