Home / 120,510,711.16-164,079,933.80-120,128,073.64

Finding the Fourth Proportional to 120,510,711.16, 164,079,933.80 and 120,128,073.64

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Solution

The fourth proportional to 120,510,711.16, 164,079,933.80 and 120,128,073.64 is: 163,558,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,510,711.16 : 164,079,933.80 = 120,128,073.64 : x
  2. Step 2: Convert to fraction form
    120,510,711.16/164,079,933.80 = 120,128,073.64/x
  3. Step 3: Cross multiply
    120,510,711.16x = 164,079,933.80 × 120,128,073.64
  4. Step 4: Simplify right side
    120,510,711.16x = 19,710,606,369,361,884
  5. Step 5: Solve for x
    x = 19,710,606,369,361,884/120,510,711.16
  6. Step 6: Final answer
    x = 163,558,958.20

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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.