Home / 774,343,276.78-1,068,580,267.59-421,922,163.40

Finding the Fourth Proportional to 774,343,276.78, 1,068,580,267.59 and 421,922,163.40

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Solution

The fourth proportional to 774,343,276.78, 1,068,580,267.59 and 421,922,163.40 is: 582,245,254.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,343,276.78 : 1,068,580,267.59 = 421,922,163.40 : x
  2. Step 2: Convert to fraction form
    774,343,276.78/1,068,580,267.59 = 421,922,163.40/x
  3. Step 3: Cross multiply
    774,343,276.78x = 1,068,580,267.59 × 421,922,163.40
  4. Step 4: Simplify right side
    774,343,276.78x = 450,857,698,268,123,712
  5. Step 5: Solve for x
    x = 450,857,698,268,123,712/774,343,276.78
  6. Step 6: Final answer
    x = 582,245,254.51

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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.