Home / 56,922,965.92-78,553,143.12-30,816,814.24

Finding the Fourth Proportional to 56,922,965.92, 78,553,143.12 and 30,816,814.24

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Solution

The fourth proportional to 56,922,965.92, 78,553,143.12 and 30,816,814.24 is: 42,526,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,922,965.92 : 78,553,143.12 = 30,816,814.24 : x
  2. Step 2: Convert to fraction form
    56,922,965.92/78,553,143.12 = 30,816,814.24/x
  3. Step 3: Cross multiply
    56,922,965.92x = 78,553,143.12 × 30,816,814.24
  4. Step 4: Simplify right side
    56,922,965.92x = 2,420,757,619,497,174
  5. Step 5: Solve for x
    x = 2,420,757,619,497,174/56,922,965.92
  6. Step 6: Final answer
    x = 42,526,905.97

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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.