Home / 684,405,838.82-944,480,309.32-371,139,969.76

Finding the Fourth Proportional to 684,405,838.82, 944,480,309.32 and 371,139,969.76

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Solution

The fourth proportional to 684,405,838.82, 944,480,309.32 and 371,139,969.76 is: 512,173,294.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,405,838.82 : 944,480,309.32 = 371,139,969.76 : x
  2. Step 2: Convert to fraction form
    684,405,838.82/944,480,309.32 = 371,139,969.76/x
  3. Step 3: Cross multiply
    684,405,838.82x = 944,480,309.32 × 371,139,969.76
  4. Step 4: Simplify right side
    684,405,838.82x = 350,534,393,439,940,288
  5. Step 5: Solve for x
    x = 350,534,393,439,940,288/684,405,838.82
  6. Step 6: Final answer
    x = 512,173,294.79

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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.