Home / 888,182,900.78-1,225,820,672.48-511,767,422.51

Finding the Fourth Proportional to 888,182,900.78, 1,225,820,672.48 and 511,767,422.51

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Solution

The fourth proportional to 888,182,900.78, 1,225,820,672.48 and 511,767,422.51 is: 706,312,951.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,182,900.78 : 1,225,820,672.48 = 511,767,422.51 : x
  2. Step 2: Convert to fraction form
    888,182,900.78/1,225,820,672.48 = 511,767,422.51/x
  3. Step 3: Cross multiply
    888,182,900.78x = 1,225,820,672.48 × 511,767,422.51
  4. Step 4: Simplify right side
    888,182,900.78x = 627,335,086,009,714,816
  5. Step 5: Solve for x
    x = 627,335,086,009,714,816/888,182,900.78
  6. Step 6: Final answer
    x = 706,312,951.38

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1.5x scale

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.