Home / 127,703,931.20-191,555,896.80-76,643,604.80

Finding the Fourth Proportional to 127,703,931.20, 191,555,896.80 and 76,643,604.80

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Solution

The fourth proportional to 127,703,931.20, 191,555,896.80 and 76,643,604.80 is: 114,965,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,703,931.20 : 191,555,896.80 = 76,643,604.80 : x
  2. Step 2: Convert to fraction form
    127,703,931.20/191,555,896.80 = 76,643,604.80/x
  3. Step 3: Cross multiply
    127,703,931.20x = 191,555,896.80 × 76,643,604.80
  4. Step 4: Simplify right side
    127,703,931.20x = 14,681,534,451,448,784
  5. Step 5: Solve for x
    x = 14,681,534,451,448,784/127,703,931.20
  6. Step 6: Final answer
    x = 114,965,407.20

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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.