Home / 127,820,935.80-191,619,429.30-76,723,284.60

Finding the Fourth Proportional to 127,820,935.80, 191,619,429.30 and 76,723,284.60

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Solution

The fourth proportional to 127,820,935.80, 191,619,429.30 and 76,723,284.60 is: 115,017,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,820,935.80 : 191,619,429.30 = 76,723,284.60 : x
  2. Step 2: Convert to fraction form
    127,820,935.80/191,619,429.30 = 76,723,284.60/x
  3. Step 3: Cross multiply
    127,820,935.80x = 191,619,429.30 × 76,723,284.60
  4. Step 4: Simplify right side
    127,820,935.80x = 14,701,672,009,073,478
  5. Step 5: Solve for x
    x = 14,701,672,009,073,478/127,820,935.80
  6. Step 6: Final answer
    x = 115,017,715.35

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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.