Home / 684,318,477.75-944,378,068.14-387,005,179.88

Finding the Fourth Proportional to 684,318,477.75, 944,378,068.14 and 387,005,179.88

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Solution

The fourth proportional to 684,318,477.75, 944,378,068.14 and 387,005,179.88 is: 534,077,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,318,477.75 : 944,378,068.14 = 387,005,179.88 : x
  2. Step 2: Convert to fraction form
    684,318,477.75/944,378,068.14 = 387,005,179.88/x
  3. Step 3: Cross multiply
    684,318,477.75x = 944,378,068.14 × 387,005,179.88
  4. Step 4: Simplify right side
    684,318,477.75x = 365,479,204,130,525,696
  5. Step 5: Solve for x
    x = 365,479,204,130,525,696/684,318,477.75
  6. Step 6: Final answer
    x = 534,077,649.54

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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.