Home / 90,590,984.90-125,016,997.35-51,431,962.58

Finding the Fourth Proportional to 90,590,984.90, 125,016,997.35 and 51,431,962.58

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Solution

The fourth proportional to 90,590,984.90, 125,016,997.35 and 51,431,962.58 is: 70,976,924.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,590,984.90 : 125,016,997.35 = 51,431,962.58 : x
  2. Step 2: Convert to fraction form
    90,590,984.90/125,016,997.35 = 51,431,962.58/x
  3. Step 3: Cross multiply
    90,590,984.90x = 125,016,997.35 × 51,431,962.58
  4. Step 4: Simplify right side
    90,590,984.90x = 6,429,869,529,569,159
  5. Step 5: Solve for x
    x = 6,429,869,529,569,159/90,590,984.90
  6. Step 6: Final answer
    x = 70,976,924.87

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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.