Home / 141,657,969.30-195,482,836.62-78,930,826.20

Finding the Fourth Proportional to 141,657,969.30, 195,482,836.62 and 78,930,826.20

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Solution

The fourth proportional to 141,657,969.30, 195,482,836.62 and 78,930,826.20 is: 108,921,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,657,969.30 : 195,482,836.62 = 78,930,826.20 : x
  2. Step 2: Convert to fraction form
    141,657,969.30/195,482,836.62 = 78,930,826.20/x
  3. Step 3: Cross multiply
    141,657,969.30x = 195,482,836.62 × 78,930,826.20
  4. Step 4: Simplify right side
    141,657,969.30x = 15,429,621,802,336,216
  5. Step 5: Solve for x
    x = 15,429,621,802,336,216/141,657,969.30
  6. Step 6: Final answer
    x = 108,921,664.48

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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.