Home / 812,515,114.12-1,121,614,132.94-548,554,667.98

Finding the Fourth Proportional to 812,515,114.12, 1,121,614,132.94 and 548,554,667.98

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Solution

The fourth proportional to 812,515,114.12, 1,121,614,132.94 and 548,554,667.98 is: 757,237,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,515,114.12 : 1,121,614,132.94 = 548,554,667.98 : x
  2. Step 2: Convert to fraction form
    812,515,114.12/1,121,614,132.94 = 548,554,667.98/x
  3. Step 3: Cross multiply
    812,515,114.12x = 1,121,614,132.94 × 548,554,667.98
  4. Step 4: Simplify right side
    812,515,114.12x = 615,266,668,293,115,008
  5. Step 5: Solve for x
    x = 615,266,668,293,115,008/812,515,114.12
  6. Step 6: Final answer
    x = 757,237,197.93

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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.