Home / 42,768,051.55-64,152,077.33-20,051,245.15

Finding the Fourth Proportional to 42,768,051.55, 64,152,077.33 and 20,051,245.15

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Solution

The fourth proportional to 42,768,051.55, 64,152,077.33 and 20,051,245.15 is: 30,076,867.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,051.55 : 64,152,077.33 = 20,051,245.15 : x
  2. Step 2: Convert to fraction form
    42,768,051.55/64,152,077.33 = 20,051,245.15/x
  3. Step 3: Cross multiply
    42,768,051.55x = 64,152,077.33 × 20,051,245.15
  4. Step 4: Simplify right side
    42,768,051.55x = 1,286,329,029,325,331.25
  5. Step 5: Solve for x
    x = 1,286,329,029,325,331.25/42,768,051.55
  6. Step 6: Final answer
    x = 30,076,867.73

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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.