Home / 118,338,638.58-163,310,935.32-66,129,874.74

Finding the Fourth Proportional to 118,338,638.58, 163,310,935.32 and 66,129,874.74

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Solution

The fourth proportional to 118,338,638.58, 163,310,935.32 and 66,129,874.74 is: 91,261,246.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,338,638.58 : 163,310,935.32 = 66,129,874.74 : x
  2. Step 2: Convert to fraction form
    118,338,638.58/163,310,935.32 = 66,129,874.74/x
  3. Step 3: Cross multiply
    118,338,638.58x = 163,310,935.32 × 66,129,874.74
  4. Step 4: Simplify right side
    118,338,638.58x = 10,799,731,696,383,842
  5. Step 5: Solve for x
    x = 10,799,731,696,383,842/118,338,638.58
  6. Step 6: Final answer
    x = 91,261,246.76

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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.