Home / 1,305,280,667.80-1,957,921,001.70-443,637,659.80

Finding the Fourth Proportional to 1,305,280,667.80, 1,957,921,001.70 and 443,637,659.80

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Solution

The fourth proportional to 1,305,280,667.80, 1,957,921,001.70 and 443,637,659.80 is: 665,456,489.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,280,667.80 : 1,957,921,001.70 = 443,637,659.80 : x
  2. Step 2: Convert to fraction form
    1,305,280,667.80/1,957,921,001.70 = 443,637,659.80/x
  3. Step 3: Cross multiply
    1,305,280,667.80x = 1,957,921,001.70 × 443,637,659.80
  4. Step 4: Simplify right side
    1,305,280,667.80x = 868,607,491,267,459,840
  5. Step 5: Solve for x
    x = 868,607,491,267,459,840/1,305,280,667.80
  6. Step 6: Final answer
    x = 665,456,489.70

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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.