Home / 137,677,131.36-189,987,228.64-75,785,381.28

Finding the Fourth Proportional to 137,677,131.36, 189,987,228.64 and 75,785,381.28

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Solution

The fourth proportional to 137,677,131.36, 189,987,228.64 and 75,785,381.28 is: 104,579,855.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,677,131.36 : 189,987,228.64 = 75,785,381.28 : x
  2. Step 2: Convert to fraction form
    137,677,131.36/189,987,228.64 = 75,785,381.28/x
  3. Step 3: Cross multiply
    137,677,131.36x = 189,987,228.64 × 75,785,381.28
  4. Step 4: Simplify right side
    137,677,131.36x = 14,398,254,560,812,936
  5. Step 5: Solve for x
    x = 14,398,254,560,812,936/137,677,131.36
  6. Step 6: Final answer
    x = 104,579,855.92

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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.