Home / 538,278,393.60-742,824,069.12-290,759,754.24

Finding the Fourth Proportional to 538,278,393.60, 742,824,069.12 and 290,759,754.24

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Solution

The fourth proportional to 538,278,393.60, 742,824,069.12 and 290,759,754.24 is: 401,248,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,278,393.60 : 742,824,069.12 = 290,759,754.24 : x
  2. Step 2: Convert to fraction form
    538,278,393.60/742,824,069.12 = 290,759,754.24/x
  3. Step 3: Cross multiply
    538,278,393.60x = 742,824,069.12 × 290,759,754.24
  4. Step 4: Simplify right side
    538,278,393.60x = 215,983,343,780,887,968
  5. Step 5: Solve for x
    x = 215,983,343,780,887,968/538,278,393.60
  6. Step 6: Final answer
    x = 401,248,399.25

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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.