Home / 387,081,838.80-580,622,758.20-356,176,904.40

Finding the Fourth Proportional to 387,081,838.80, 580,622,758.20 and 356,176,904.40

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Solution

The fourth proportional to 387,081,838.80, 580,622,758.20 and 356,176,904.40 is: 534,265,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,081,838.80 : 580,622,758.20 = 356,176,904.40 : x
  2. Step 2: Convert to fraction form
    387,081,838.80/580,622,758.20 = 356,176,904.40/x
  3. Step 3: Cross multiply
    387,081,838.80x = 580,622,758.20 × 356,176,904.40
  4. Step 4: Simplify right side
    387,081,838.80x = 206,804,416,639,865,728
  5. Step 5: Solve for x
    x = 206,804,416,639,865,728/387,081,838.80
  6. Step 6: Final answer
    x = 534,265,356.60

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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.