Home / 774,990,472.89-1,069,504,496.43-440,410,276.78

Finding the Fourth Proportional to 774,990,472.89, 1,069,504,496.43 and 440,410,276.78

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Solution

The fourth proportional to 774,990,472.89, 1,069,504,496.43 and 440,410,276.78 is: 607,776,208.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,990,472.89 : 1,069,504,496.43 = 440,410,276.78 : x
  2. Step 2: Convert to fraction form
    774,990,472.89/1,069,504,496.43 = 440,410,276.78/x
  3. Step 3: Cross multiply
    774,990,472.89x = 1,069,504,496.43 × 440,410,276.78
  4. Step 4: Simplify right side
    774,990,472.89x = 471,020,771,290,190,784
  5. Step 5: Solve for x
    x = 471,020,771,290,190,784/774,990,472.89
  6. Step 6: Final answer
    x = 607,776,208.57

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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.