Home / 685,168,814.34-945,508,494.85-387,804,671.46

Finding the Fourth Proportional to 685,168,814.34, 945,508,494.85 and 387,804,671.46

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Solution

The fourth proportional to 685,168,814.34, 945,508,494.85 and 387,804,671.46 is: 535,156,597.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,168,814.34 : 945,508,494.85 = 387,804,671.46 : x
  2. Step 2: Convert to fraction form
    685,168,814.34/945,508,494.85 = 387,804,671.46/x
  3. Step 3: Cross multiply
    685,168,814.34x = 945,508,494.85 × 387,804,671.46
  4. Step 4: Simplify right side
    685,168,814.34x = 366,672,611,205,186,048
  5. Step 5: Solve for x
    x = 366,672,611,205,186,048/685,168,814.34
  6. Step 6: Final answer
    x = 535,156,597.22

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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.