Home / 1,256,886,448.60-1,885,486,196.50-427,776,377.80

Finding the Fourth Proportional to 1,256,886,448.60, 1,885,486,196.50 and 427,776,377.80

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Solution

The fourth proportional to 1,256,886,448.60, 1,885,486,196.50 and 427,776,377.80 is: 641,717,838.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,886,448.60 : 1,885,486,196.50 = 427,776,377.80 : x
  2. Step 2: Convert to fraction form
    1,256,886,448.60/1,885,486,196.50 = 427,776,377.80/x
  3. Step 3: Cross multiply
    1,256,886,448.60x = 1,885,486,196.50 × 427,776,377.80
  4. Step 4: Simplify right side
    1,256,886,448.60x = 806,566,455,530,669,056
  5. Step 5: Solve for x
    x = 806,566,455,530,669,056/1,256,886,448.60
  6. Step 6: Final answer
    x = 641,717,838.89

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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.