Home / 163,615,555.81-225,789,309.89-90,276,701.41

Finding the Fourth Proportional to 163,615,555.81, 225,789,309.89 and 90,276,701.41

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Solution

The fourth proportional to 163,615,555.81, 225,789,309.89 and 90,276,701.41 is: 124,581,761.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,615,555.81 : 225,789,309.89 = 90,276,701.41 : x
  2. Step 2: Convert to fraction form
    163,615,555.81/225,789,309.89 = 90,276,701.41/x
  3. Step 3: Cross multiply
    163,615,555.81x = 225,789,309.89 × 90,276,701.41
  4. Step 4: Simplify right side
    163,615,555.81x = 20,383,514,110,058,104
  5. Step 5: Solve for x
    x = 20,383,514,110,058,104/163,615,555.81
  6. Step 6: Final answer
    x = 124,581,761.25

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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.