Home / 100,319,642.74-138,441,597.35-56,268,995.80

Finding the Fourth Proportional to 100,319,642.74, 138,441,597.35 and 56,268,995.80

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Solution

The fourth proportional to 100,319,642.74, 138,441,597.35 and 56,268,995.80 is: 77,651,489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,319,642.74 : 138,441,597.35 = 56,268,995.80 : x
  2. Step 2: Convert to fraction form
    100,319,642.74/138,441,597.35 = 56,268,995.80/x
  3. Step 3: Cross multiply
    100,319,642.74x = 138,441,597.35 × 56,268,995.80
  4. Step 4: Simplify right side
    100,319,642.74x = 7,789,969,658,858,888
  5. Step 5: Solve for x
    x = 7,789,969,658,858,888/100,319,642.74
  6. Step 6: Final answer
    x = 77,651,489.24

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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.