Home / 774,361,619.76-1,068,606,346.68-421,941,791.28

Finding the Fourth Proportional to 774,361,619.76, 1,068,606,346.68 and 421,941,791.28

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Solution

The fourth proportional to 774,361,619.76, 1,068,606,346.68 and 421,941,791.28 is: 582,272,758.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,361,619.76 : 1,068,606,346.68 = 421,941,791.28 : x
  2. Step 2: Convert to fraction form
    774,361,619.76/1,068,606,346.68 = 421,941,791.28/x
  3. Step 3: Cross multiply
    774,361,619.76x = 1,068,606,346.68 × 421,941,791.28
  4. Step 4: Simplify right side
    774,361,619.76x = 450,889,676,091,335,808
  5. Step 5: Solve for x
    x = 450,889,676,091,335,808/774,361,619.76
  6. Step 6: Final answer
    x = 582,272,758.08

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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.