Home / 1,259,712,004.80-1,889,568,007.20-386,448,153.60

Finding the Fourth Proportional to 1,259,712,004.80, 1,889,568,007.20 and 386,448,153.60

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Solution

The fourth proportional to 1,259,712,004.80, 1,889,568,007.20 and 386,448,153.60 is: 579,672,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,712,004.80 : 1,889,568,007.20 = 386,448,153.60 : x
  2. Step 2: Convert to fraction form
    1,259,712,004.80/1,889,568,007.20 = 386,448,153.60/x
  3. Step 3: Cross multiply
    1,259,712,004.80x = 1,889,568,007.20 × 386,448,153.60
  4. Step 4: Simplify right side
    1,259,712,004.80x = 730,220,067,484,071,552
  5. Step 5: Solve for x
    x = 730,220,067,484,071,552/1,259,712,004.80
  6. Step 6: Final answer
    x = 579,672,230.40

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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.