Home / 493,677,976.16-681,345,007.44-305,566,607.36

Finding the Fourth Proportional to 493,677,976.16, 681,345,007.44 and 305,566,607.36

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Solution

The fourth proportional to 493,677,976.16, 681,345,007.44 and 305,566,607.36 is: 421,724,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,677,976.16 : 681,345,007.44 = 305,566,607.36 : x
  2. Step 2: Convert to fraction form
    493,677,976.16/681,345,007.44 = 305,566,607.36/x
  3. Step 3: Cross multiply
    493,677,976.16x = 681,345,007.44 × 305,566,607.36
  4. Step 4: Simplify right side
    493,677,976.16x = 208,196,282,365,114,784
  5. Step 5: Solve for x
    x = 208,196,282,365,114,784/493,677,976.16
  6. Step 6: Final answer
    x = 421,724,874.15

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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.