Home / 917,743,015,465.10-1,266,489,298,740-500,605,951,078.75

Finding the Fourth Proportional to 917,743,015,465.10, 1,266,489,298,740 and 500,605,951,078.75

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Solution

The fourth proportional to 917,743,015,465.10, 1,266,489,298,740 and 500,605,951,078.75 is: 690,838,360,241.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,743,015,465.10 : 1,266,489,298,740 = 500,605,951,078.75 : x
  2. Step 2: Convert to fraction form
    917,743,015,465.10/1,266,489,298,740 = 500,605,951,078.75/x
  3. Step 3: Cross multiply
    917,743,015,465.10x = 1,266,489,298,740 × 500,605,951,078.75
  4. Step 4: Simplify right side
    917,743,015,465.10x = 634,012,079,926,796,863,143,936
  5. Step 5: Solve for x
    x = 634,012,079,926,796,863,143,936/917,743,015,465.10
  6. Step 6: Final answer
    x = 690,838,360,241.28

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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.