Home / 118,450,977.43-163,503,443.06-81,403,894.75

Finding the Fourth Proportional to 118,450,977.43, 163,503,443.06 and 81,403,894.75

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Solution

The fourth proportional to 118,450,977.43, 163,503,443.06 and 81,403,894.75 is: 112,365,616.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,450,977.43 : 163,503,443.06 = 81,403,894.75 : x
  2. Step 2: Convert to fraction form
    118,450,977.43/163,503,443.06 = 81,403,894.75/x
  3. Step 3: Cross multiply
    118,450,977.43x = 163,503,443.06 × 81,403,894.75
  4. Step 4: Simplify right side
    118,450,977.43x = 13,309,817,070,118,858
  5. Step 5: Solve for x
    x = 13,309,817,070,118,858/118,450,977.43
  6. Step 6: Final answer
    x = 112,365,616.21

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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.