Home / 3,987,631,547.60-5,981,447,321.40-1,921,388,939.60

Finding the Fourth Proportional to 3,987,631,547.60, 5,981,447,321.40 and 1,921,388,939.60

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Solution

The fourth proportional to 3,987,631,547.60, 5,981,447,321.40 and 1,921,388,939.60 is: 2,882,083,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,631,547.60 : 5,981,447,321.40 = 1,921,388,939.60 : x
  2. Step 2: Convert to fraction form
    3,987,631,547.60/5,981,447,321.40 = 1,921,388,939.60/x
  3. Step 3: Cross multiply
    3,987,631,547.60x = 5,981,447,321.40 × 1,921,388,939.60
  4. Step 4: Simplify right side
    3,987,631,547.60x = 11,492,686,726,138,005,504
  5. Step 5: Solve for x
    x = 11,492,686,726,138,005,504/3,987,631,547.60
  6. Step 6: Final answer
    x = 2,882,083,409.40

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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.