Home / 40,238,838-55,529,602.92-21,904,261.20

Finding the Fourth Proportional to 40,238,838, 55,529,602.92 and 21,904,261.20

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Solution

The fourth proportional to 40,238,838, 55,529,602.92 and 21,904,261.20 is: 30,227,883.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,238,838 : 55,529,602.92 = 21,904,261.20 : x
  2. Step 2: Convert to fraction form
    40,238,838/55,529,602.92 = 21,904,261.20/x
  3. Step 3: Cross multiply
    40,238,838x = 55,529,602.92 × 21,904,261.20
  4. Step 4: Simplify right side
    40,238,838x = 1,216,334,926,691,962.75
  5. Step 5: Solve for x
    x = 1,216,334,926,691,962.75/40,238,838
  6. Step 6: Final answer
    x = 30,227,883.98

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1.5x scale

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.