Home / 685,168,816.84-945,508,498.30-387,804,673.95

Finding the Fourth Proportional to 685,168,816.84, 945,508,498.30 and 387,804,673.95

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Solution

The fourth proportional to 685,168,816.84, 945,508,498.30 and 387,804,673.95 is: 535,156,600.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,168,816.84 : 945,508,498.30 = 387,804,673.95 : x
  2. Step 2: Convert to fraction form
    685,168,816.84/945,508,498.30 = 387,804,673.95/x
  3. Step 3: Cross multiply
    685,168,816.84x = 945,508,498.30 × 387,804,673.95
  4. Step 4: Simplify right side
    685,168,816.84x = 366,672,614,900,185,600
  5. Step 5: Solve for x
    x = 366,672,614,900,185,600/685,168,816.84
  6. Step 6: Final answer
    x = 535,156,600.66

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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.