Home / 42,768,052.05-64,152,078.08-20,051,245.65

Finding the Fourth Proportional to 42,768,052.05, 64,152,078.08 and 20,051,245.65

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Solution

The fourth proportional to 42,768,052.05, 64,152,078.08 and 20,051,245.65 is: 30,076,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,052.05 : 64,152,078.08 = 20,051,245.65 : x
  2. Step 2: Convert to fraction form
    42,768,052.05/64,152,078.08 = 20,051,245.65/x
  3. Step 3: Cross multiply
    42,768,052.05x = 64,152,078.08 × 20,051,245.65
  4. Step 4: Simplify right side
    42,768,052.05x = 1,286,329,076,439,804
  5. Step 5: Solve for x
    x = 1,286,329,076,439,804/42,768,052.05
  6. Step 6: Final answer
    x = 30,076,868.48

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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.