Home / 67,143,784.96-100,715,671.96-18,621,638.24

Finding the Fourth Proportional to 67,143,784.96, 100,715,671.96 and 18,621,638.24

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Solution

The fourth proportional to 67,143,784.96, 100,715,671.96 and 18,621,638.24 is: 27,932,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,143,784.96 : 100,715,671.96 = 18,621,638.24 : x
  2. Step 2: Convert to fraction form
    67,143,784.96/100,715,671.96 = 18,621,638.24/x
  3. Step 3: Cross multiply
    67,143,784.96x = 100,715,671.96 × 18,621,638.24
  4. Step 4: Simplify right side
    67,143,784.96x = 1,875,490,808,337,631.50
  5. Step 5: Solve for x
    x = 1,875,490,808,337,631.50/67,143,784.96
  6. Step 6: Final answer
    x = 27,932,455.84

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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.