Home / 42,768,016.30-64,152,024.45-20,051,209.90

Finding the Fourth Proportional to 42,768,016.30, 64,152,024.45 and 20,051,209.90

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Solution

The fourth proportional to 42,768,016.30, 64,152,024.45 and 20,051,209.90 is: 30,076,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,016.30 : 64,152,024.45 = 20,051,209.90 : x
  2. Step 2: Convert to fraction form
    42,768,016.30/64,152,024.45 = 20,051,209.90/x
  3. Step 3: Cross multiply
    42,768,016.30x = 64,152,024.45 × 20,051,209.90
  4. Step 4: Simplify right side
    42,768,016.30x = 1,286,325,707,756,882
  5. Step 5: Solve for x
    x = 1,286,325,707,756,882/42,768,016.30
  6. Step 6: Final answer
    x = 30,076,814.85

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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.