Home / 771,122,119.20-1,064,149,784.16-418,698,791.52

Finding the Fourth Proportional to 771,122,119.20, 1,064,149,784.16 and 418,698,791.52

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Solution

The fourth proportional to 771,122,119.20, 1,064,149,784.16 and 418,698,791.52 is: 577,805,016.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,122,119.20 : 1,064,149,784.16 = 418,698,791.52 : x
  2. Step 2: Convert to fraction form
    771,122,119.20/1,064,149,784.16 = 418,698,791.52/x
  3. Step 3: Cross multiply
    771,122,119.20x = 1,064,149,784.16 × 418,698,791.52
  4. Step 4: Simplify right side
    771,122,119.20x = 445,558,228,624,060,800
  5. Step 5: Solve for x
    x = 445,558,228,624,060,800/771,122,119.20
  6. Step 6: Final answer
    x = 577,805,016.26

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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.