Home / 1,239,042,359.64-1,858,018,148.22-656,640,153.74

Finding the Fourth Proportional to 1,239,042,359.64, 1,858,018,148.22 and 656,640,153.74

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Solution

The fourth proportional to 1,239,042,359.64, 1,858,018,148.22 and 656,640,153.74 is: 984,671,196.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,042,359.64 : 1,858,018,148.22 = 656,640,153.74 : x
  2. Step 2: Convert to fraction form
    1,239,042,359.64/1,858,018,148.22 = 656,640,153.74/x
  3. Step 3: Cross multiply
    1,239,042,359.64x = 1,858,018,148.22 × 656,640,153.74
  4. Step 4: Simplify right side
    1,239,042,359.64x = 1,220,049,322,498,891,008
  5. Step 5: Solve for x
    x = 1,220,049,322,498,891,008/1,239,042,359.64
  6. Step 6: Final answer
    x = 984,671,196.27

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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.