Home / 1,266,915,036.80-1,899,042,272.47-426,265,949.41

Finding the Fourth Proportional to 1,266,915,036.80, 1,899,042,272.47 and 426,265,949.41

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Solution

The fourth proportional to 1,266,915,036.80, 1,899,042,272.47 and 426,265,949.41 is: 638,951,337.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,915,036.80 : 1,899,042,272.47 = 426,265,949.41 : x
  2. Step 2: Convert to fraction form
    1,266,915,036.80/1,899,042,272.47 = 426,265,949.41/x
  3. Step 3: Cross multiply
    1,266,915,036.80x = 1,899,042,272.47 × 426,265,949.41
  4. Step 4: Simplify right side
    1,266,915,036.80x = 809,497,057,232,521,856
  5. Step 5: Solve for x
    x = 809,497,057,232,521,856/1,266,915,036.80
  6. Step 6: Final answer
    x = 638,951,337.48

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1.5x scale

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.