Home / 120,510,898.64-164,080,188.44-120,128,261.12

Finding the Fourth Proportional to 120,510,898.64, 164,080,188.44 and 120,128,261.12

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Solution

The fourth proportional to 120,510,898.64, 164,080,188.44 and 120,128,261.12 is: 163,559,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,510,898.64 : 164,080,188.44 = 120,128,261.12 : x
  2. Step 2: Convert to fraction form
    120,510,898.64/164,080,188.44 = 120,128,261.12/x
  3. Step 3: Cross multiply
    120,510,898.64x = 164,080,188.44 × 120,128,261.12
  4. Step 4: Simplify right side
    120,510,898.64x = 19,710,667,721,539,124
  5. Step 5: Solve for x
    x = 19,710,667,721,539,124/120,510,898.64
  6. Step 6: Final answer
    x = 163,559,212.85

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.