Home / 774,343,247.81-1,068,580,227.65-421,922,134.47

Finding the Fourth Proportional to 774,343,247.81, 1,068,580,227.65 and 421,922,134.47

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Solution

The fourth proportional to 774,343,247.81, 1,068,580,227.65 and 421,922,134.47 is: 582,245,214.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,343,247.81 : 1,068,580,227.65 = 421,922,134.47 : x
  2. Step 2: Convert to fraction form
    774,343,247.81/1,068,580,227.65 = 421,922,134.47/x
  3. Step 3: Cross multiply
    774,343,247.81x = 1,068,580,227.65 × 421,922,134.47
  4. Step 4: Simplify right side
    774,343,247.81x = 450,857,650,500,416,896
  5. Step 5: Solve for x
    x = 450,857,650,500,416,896/774,343,247.81
  6. Step 6: Final answer
    x = 582,245,214.61

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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.