Home / 39,819,154,997.65-54,950,455,940.54-21,508,212,580.01

Finding the Fourth Proportional to 39,819,154,997.65, 54,950,455,940.54 and 21,508,212,580.01

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Solution

The fourth proportional to 39,819,154,997.65, 54,950,455,940.54 and 21,508,212,580.01 is: 29,681,345,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819,154,997.65 : 54,950,455,940.54 = 21,508,212,580.01 : x
  2. Step 2: Convert to fraction form
    39,819,154,997.65/54,950,455,940.54 = 21,508,212,580.01/x
  3. Step 3: Cross multiply
    39,819,154,997.65x = 54,950,455,940.54 × 21,508,212,580.01
  4. Step 4: Simplify right side
    39,819,154,997.65x = 1,181,886,087,737,332,989,952
  5. Step 5: Solve for x
    x = 1,181,886,087,737,332,989,952/39,819,154,997.65
  6. Step 6: Final answer
    x = 29,681,345,267.30

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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.