Home / 42,768,052.55-64,152,078.83-20,051,246.15

Finding the Fourth Proportional to 42,768,052.55, 64,152,078.83 and 20,051,246.15

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Solution

The fourth proportional to 42,768,052.55, 64,152,078.83 and 20,051,246.15 is: 30,076,869.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,052.55 : 64,152,078.83 = 20,051,246.15 : x
  2. Step 2: Convert to fraction form
    42,768,052.55/64,152,078.83 = 20,051,246.15/x
  3. Step 3: Cross multiply
    42,768,052.55x = 64,152,078.83 × 20,051,246.15
  4. Step 4: Simplify right side
    42,768,052.55x = 1,286,329,123,654,533.75
  5. Step 5: Solve for x
    x = 1,286,329,123,654,533.75/42,768,052.55
  6. Step 6: Final answer
    x = 30,076,869.23

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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.