Home / 766,475,999.80-1,149,713,999.70-275,424,515.80

Finding the Fourth Proportional to 766,475,999.80, 1,149,713,999.70 and 275,424,515.80

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Solution

The fourth proportional to 766,475,999.80, 1,149,713,999.70 and 275,424,515.80 is: 413,136,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,475,999.80 : 1,149,713,999.70 = 275,424,515.80 : x
  2. Step 2: Convert to fraction form
    766,475,999.80/1,149,713,999.70 = 275,424,515.80/x
  3. Step 3: Cross multiply
    766,475,999.80x = 1,149,713,999.70 × 275,424,515.80
  4. Step 4: Simplify right side
    766,475,999.80x = 316,659,421,675,853,888
  5. Step 5: Solve for x
    x = 316,659,421,675,853,888/766,475,999.80
  6. Step 6: Final answer
    x = 413,136,773.70

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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.