Home / 100,582,012.82-151,545,131.72-90,877,905.02

Finding the Fourth Proportional to 100,582,012.82, 151,545,131.72 and 90,877,905.02

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Solution

The fourth proportional to 100,582,012.82, 151,545,131.72 and 90,877,905.02 is: 136,924,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,582,012.82 : 151,545,131.72 = 90,877,905.02 : x
  2. Step 2: Convert to fraction form
    100,582,012.82/151,545,131.72 = 90,877,905.02/x
  3. Step 3: Cross multiply
    100,582,012.82x = 151,545,131.72 × 90,877,905.02
  4. Step 4: Simplify right side
    100,582,012.82x = 13,772,104,086,693,548
  5. Step 5: Solve for x
    x = 13,772,104,086,693,548/100,582,012.82
  6. Step 6: Final answer
    x = 136,924,124.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.