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Finding the Fourth Proportional to 774,480,362.80, 1,068,751,802.40 and 422,048,842

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Solution

The fourth proportional to 774,480,362.80, 1,068,751,802.40 and 422,048,842 is: 582,410,455.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,480,362.80 : 1,068,751,802.40 = 422,048,842 : x
  2. Step 2: Convert to fraction form
    774,480,362.80/1,068,751,802.40 = 422,048,842/x
  3. Step 3: Cross multiply
    774,480,362.80x = 1,068,751,802.40 × 422,048,842
  4. Step 4: Simplify right side
    774,480,362.80x = 451,065,460,588,332,800
  5. Step 5: Solve for x
    x = 451,065,460,588,332,800/774,480,362.80
  6. Step 6: Final answer
    x = 582,410,455.13

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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.