Home / 39,819,154,995.89-54,950,455,938.10-21,508,212,578.23

Finding the Fourth Proportional to 39,819,154,995.89, 54,950,455,938.10 and 21,508,212,578.23

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Solution

The fourth proportional to 39,819,154,995.89, 54,950,455,938.10 and 21,508,212,578.23 is: 29,681,345,264.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819,154,995.89 : 54,950,455,938.10 = 21,508,212,578.23 : x
  2. Step 2: Convert to fraction form
    39,819,154,995.89/54,950,455,938.10 = 21,508,212,578.23/x
  3. Step 3: Cross multiply
    39,819,154,995.89x = 54,950,455,938.10 × 21,508,212,578.23
  4. Step 4: Simplify right side
    39,819,154,995.89x = 1,181,886,087,587,206,004,736
  5. Step 5: Solve for x
    x = 1,181,886,087,587,206,004,736/39,819,154,995.89
  6. Step 6: Final answer
    x = 29,681,345,264.84

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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.