Home / 118,852,211.80-178,278,317.70-81,863,918.20

Finding the Fourth Proportional to 118,852,211.80, 178,278,317.70 and 81,863,918.20

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Solution

The fourth proportional to 118,852,211.80, 178,278,317.70 and 81,863,918.20 is: 122,795,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,852,211.80 : 178,278,317.70 = 81,863,918.20 : x
  2. Step 2: Convert to fraction form
    118,852,211.80/178,278,317.70 = 81,863,918.20/x
  3. Step 3: Cross multiply
    118,852,211.80x = 178,278,317.70 × 81,863,918.20
  4. Step 4: Simplify right side
    118,852,211.80x = 14,594,561,617,026,412
  5. Step 5: Solve for x
    x = 14,594,561,617,026,412/118,852,211.80
  6. Step 6: Final answer
    x = 122,795,877.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.