Home / 81,061,022.09-121,573,299.17-37,299,803.64

Finding the Fourth Proportional to 81,061,022.09, 121,573,299.17 and 37,299,803.64

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Solution

The fourth proportional to 81,061,022.09, 121,573,299.17 and 37,299,803.64 is: 55,941,315.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,061,022.09 : 121,573,299.17 = 37,299,803.64 : x
  2. Step 2: Convert to fraction form
    81,061,022.09/121,573,299.17 = 37,299,803.64/x
  3. Step 3: Cross multiply
    81,061,022.09x = 121,573,299.17 × 37,299,803.64
  4. Step 4: Simplify right side
    81,061,022.09x = 4,534,660,186,545,324
  5. Step 5: Solve for x
    x = 4,534,660,186,545,324/81,061,022.09
  6. Step 6: Final answer
    x = 55,941,315.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.