Home / 1,187,628,736.41-1,781,385,162.48-440,789,826.96

Finding the Fourth Proportional to 1,187,628,736.41, 1,781,385,162.48 and 440,789,826.96

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Solution

The fourth proportional to 1,187,628,736.41, 1,781,385,162.48 and 440,789,826.96 is: 661,163,235.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,628,736.41 : 1,781,385,162.48 = 440,789,826.96 : x
  2. Step 2: Convert to fraction form
    1,187,628,736.41/1,781,385,162.48 = 440,789,826.96/x
  3. Step 3: Cross multiply
    1,187,628,736.41x = 1,781,385,162.48 × 440,789,826.96
  4. Step 4: Simplify right side
    1,187,628,736.41x = 785,216,457,518,670,592
  5. Step 5: Solve for x
    x = 785,216,457,518,670,592/1,187,628,736.41
  6. Step 6: Final answer
    x = 661,163,235.15

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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.