Home / 3,986,139,736.80-5,979,178,112.40-1,038,413,656.80

Finding the Fourth Proportional to 3,986,139,736.80, 5,979,178,112.40 and 1,038,413,656.80

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Solution

The fourth proportional to 3,986,139,736.80, 5,979,178,112.40 and 1,038,413,656.80 is: 1,557,612,281.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,139,736.80 : 5,979,178,112.40 = 1,038,413,656.80 : x
  2. Step 2: Convert to fraction form
    3,986,139,736.80/5,979,178,112.40 = 1,038,413,656.80/x
  3. Step 3: Cross multiply
    3,986,139,736.80x = 5,979,178,112.40 × 1,038,413,656.80
  4. Step 4: Simplify right side
    3,986,139,736.80x = 6,208,860,208,355,805,184
  5. Step 5: Solve for x
    x = 6,208,860,208,355,805,184/3,986,139,736.80
  6. Step 6: Final answer
    x = 1,557,612,281.13

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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.