Home / 1,979,509,990.90-2,731,725,577.89-1,087,494,502.36

Finding the Fourth Proportional to 1,979,509,990.90, 2,731,725,577.89 and 1,087,494,502.36

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Solution

The fourth proportional to 1,979,509,990.90, 2,731,725,577.89 and 1,087,494,502.36 is: 1,500,743,396.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,509,990.90 : 2,731,725,577.89 = 1,087,494,502.36 : x
  2. Step 2: Convert to fraction form
    1,979,509,990.90/2,731,725,577.89 = 1,087,494,502.36/x
  3. Step 3: Cross multiply
    1,979,509,990.90x = 2,731,725,577.89 × 1,087,494,502.36
  4. Step 4: Simplify right side
    1,979,509,990.90x = 2,970,736,547,911,568,384
  5. Step 5: Solve for x
    x = 2,970,736,547,911,568,384/1,979,509,990.90
  6. Step 6: Final answer
    x = 1,500,743,396.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.