Home / 489,781,871.10-675,873,466.47-304,138,904.22

Finding the Fourth Proportional to 489,781,871.10, 675,873,466.47 and 304,138,904.22

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Solution

The fourth proportional to 489,781,871.10, 675,873,466.47 and 304,138,904.22 is: 419,695,843.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,781,871.10 : 675,873,466.47 = 304,138,904.22 : x
  2. Step 2: Convert to fraction form
    489,781,871.10/675,873,466.47 = 304,138,904.22/x
  3. Step 3: Cross multiply
    489,781,871.10x = 675,873,466.47 × 304,138,904.22
  4. Step 4: Simplify right side
    489,781,871.10x = 205,559,415,483,558,752
  5. Step 5: Solve for x
    x = 205,559,415,483,558,752/489,781,871.10
  6. Step 6: Final answer
    x = 419,695,843.42

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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.