Home / 718,185,566.88-991,076,287.32-404,917,062.48

Finding the Fourth Proportional to 718,185,566.88, 991,076,287.32 and 404,917,062.48

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Solution

The fourth proportional to 718,185,566.88, 991,076,287.32 and 404,917,062.48 is: 558,774,385.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,185,566.88 : 991,076,287.32 = 404,917,062.48 : x
  2. Step 2: Convert to fraction form
    718,185,566.88/991,076,287.32 = 404,917,062.48/x
  3. Step 3: Cross multiply
    718,185,566.88x = 991,076,287.32 × 404,917,062.48
  4. Step 4: Simplify right side
    718,185,566.88x = 401,303,698,955,198,912
  5. Step 5: Solve for x
    x = 401,303,698,955,198,912/718,185,566.88
  6. Step 6: Final answer
    x = 558,774,385.70

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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.