Home / 720,809,100,547.64-994,717,543,790.90-391,212,143,796.48

Finding the Fourth Proportional to 720,809,100,547.64, 994,717,543,790.90 and 391,212,143,796.48

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Solution

The fourth proportional to 720,809,100,547.64, 994,717,543,790.90 and 391,212,143,796.48 is: 539,873,293,057.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,809,100,547.64 : 994,717,543,790.90 = 391,212,143,796.48 : x
  2. Step 2: Convert to fraction form
    720,809,100,547.64/994,717,543,790.90 = 391,212,143,796.48/x
  3. Step 3: Cross multiply
    720,809,100,547.64x = 994,717,543,790.90 × 391,212,143,796.48
  4. Step 4: Simplify right side
    720,809,100,547.64x = 389,145,582,778,406,919,995,392
  5. Step 5: Solve for x
    x = 389,145,582,778,406,919,995,392/720,809,100,547.64
  6. Step 6: Final answer
    x = 539,873,293,057.41

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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.