Home / 42,768,572.10-64,149,635.43-13,621,235.46

Finding the Fourth Proportional to 42,768,572.10, 64,149,635.43 and 13,621,235.46

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Solution

The fourth proportional to 42,768,572.10, 64,149,635.43 and 13,621,235.46 is: 20,430,826.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,572.10 : 64,149,635.43 = 13,621,235.46 : x
  2. Step 2: Convert to fraction form
    42,768,572.10/64,149,635.43 = 13,621,235.46/x
  3. Step 3: Cross multiply
    42,768,572.10x = 64,149,635.43 × 13,621,235.46
  4. Step 4: Simplify right side
    42,768,572.10x = 873,797,288,865,188.38
  5. Step 5: Solve for x
    x = 873,797,288,865,188.38/42,768,572.10
  6. Step 6: Final answer
    x = 20,430,826.80

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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.