Home / 3,986,139,079.80-5,979,177,126.90-1,038,412,999.80

Finding the Fourth Proportional to 3,986,139,079.80, 5,979,177,126.90 and 1,038,412,999.80

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Solution

The fourth proportional to 3,986,139,079.80, 5,979,177,126.90 and 1,038,412,999.80 is: 1,557,611,295.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,139,079.80 : 5,979,177,126.90 = 1,038,412,999.80 : x
  2. Step 2: Convert to fraction form
    3,986,139,079.80/5,979,177,126.90 = 1,038,412,999.80/x
  3. Step 3: Cross multiply
    3,986,139,079.80x = 5,979,177,126.90 × 1,038,412,999.80
  4. Step 4: Simplify right side
    3,986,139,079.80x = 6,208,855,256,679,773,184
  5. Step 5: Solve for x
    x = 6,208,855,256,679,773,184/3,986,139,079.80
  6. Step 6: Final answer
    x = 1,557,611,295.64

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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.