Home / 86,959,042.64-120,061,264.59-66,806,147.44

Finding the Fourth Proportional to 86,959,042.64, 120,061,264.59 and 66,806,147.44

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Solution

The fourth proportional to 86,959,042.64, 120,061,264.59 and 66,806,147.44 is: 92,236,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,959,042.64 : 120,061,264.59 = 66,806,147.44 : x
  2. Step 2: Convert to fraction form
    86,959,042.64/120,061,264.59 = 66,806,147.44/x
  3. Step 3: Cross multiply
    86,959,042.64x = 120,061,264.59 × 66,806,147.44
  4. Step 4: Simplify right side
    86,959,042.64x = 8,020,830,544,032,391
  5. Step 5: Solve for x
    x = 8,020,830,544,032,391/86,959,042.64
  6. Step 6: Final answer
    x = 92,236,877.28

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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.