Home / 55,334,343.60-82,970,411.40-21,256,801.20

Finding the Fourth Proportional to 55,334,343.60, 82,970,411.40 and 21,256,801.20

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Solution

The fourth proportional to 55,334,343.60, 82,970,411.40 and 21,256,801.20 is: 31,873,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,334,343.60 : 82,970,411.40 = 21,256,801.20 : x
  2. Step 2: Convert to fraction form
    55,334,343.60/82,970,411.40 = 21,256,801.20/x
  3. Step 3: Cross multiply
    55,334,343.60x = 82,970,411.40 × 21,256,801.20
  4. Step 4: Simplify right side
    55,334,343.60x = 1,763,685,540,612,013.75
  5. Step 5: Solve for x
    x = 1,763,685,540,612,013.75/55,334,343.60
  6. Step 6: Final answer
    x = 31,873,253.13

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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.