Home / 42,624,145.80-63,936,218.70-13,872,990.60

Finding the Fourth Proportional to 42,624,145.80, 63,936,218.70 and 13,872,990.60

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Solution

The fourth proportional to 42,624,145.80, 63,936,218.70 and 13,872,990.60 is: 20,809,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,624,145.80 : 63,936,218.70 = 13,872,990.60 : x
  2. Step 2: Convert to fraction form
    42,624,145.80/63,936,218.70 = 13,872,990.60/x
  3. Step 3: Cross multiply
    42,624,145.80x = 63,936,218.70 × 13,872,990.60
  4. Step 4: Simplify right side
    42,624,145.80x = 886,986,561,024,644.25
  5. Step 5: Solve for x
    x = 886,986,561,024,644.25/42,624,145.80
  6. Step 6: Final answer
    x = 20,809,485.90

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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.