Home / 67,085,325.20-100,578,221.40-28,715,430.80

Finding the Fourth Proportional to 67,085,325.20, 100,578,221.40 and 28,715,430.80

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Solution

The fourth proportional to 67,085,325.20, 100,578,221.40 and 28,715,430.80 is: 43,051,844.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,085,325.20 : 100,578,221.40 = 28,715,430.80 : x
  2. Step 2: Convert to fraction form
    67,085,325.20/100,578,221.40 = 28,715,430.80/x
  3. Step 3: Cross multiply
    67,085,325.20x = 100,578,221.40 × 28,715,430.80
  4. Step 4: Simplify right side
    67,085,325.20x = 2,888,146,956,598,779.50
  5. Step 5: Solve for x
    x = 2,888,146,956,598,779.50/67,085,325.20
  6. Step 6: Final answer
    x = 43,051,844.02

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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.