Home / 85,959,638.43-118,698,031.56-83,179,990.05

Finding the Fourth Proportional to 85,959,638.43, 118,698,031.56 and 83,179,990.05

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Solution

The fourth proportional to 85,959,638.43, 118,698,031.56 and 83,179,990.05 is: 114,859,732.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,959,638.43 : 118,698,031.56 = 83,179,990.05 : x
  2. Step 2: Convert to fraction form
    85,959,638.43/118,698,031.56 = 83,179,990.05/x
  3. Step 3: Cross multiply
    85,959,638.43x = 118,698,031.56 × 83,179,990.05
  4. Step 4: Simplify right side
    85,959,638.43x = 9,873,301,084,115,386
  5. Step 5: Solve for x
    x = 9,873,301,084,115,386/85,959,638.43
  6. Step 6: Final answer
    x = 114,859,732.60

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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.