Home / 39,819,157,456.01-54,950,459,336.31-21,508,215,048.38

Finding the Fourth Proportional to 39,819,157,456.01, 54,950,459,336.31 and 21,508,215,048.38

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Solution

The fourth proportional to 39,819,157,456.01, 54,950,459,336.31 and 21,508,215,048.38 is: 29,681,348,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819,157,456.01 : 54,950,459,336.31 = 21,508,215,048.38 : x
  2. Step 2: Convert to fraction form
    39,819,157,456.01/54,950,459,336.31 = 21,508,215,048.38/x
  3. Step 3: Cross multiply
    39,819,157,456.01x = 54,950,459,336.31 × 21,508,215,048.38
  4. Step 4: Simplify right side
    39,819,157,456.01x = 1,181,886,296,412,341,141,504
  5. Step 5: Solve for x
    x = 1,181,886,296,412,341,141,504/39,819,157,456.01
  6. Step 6: Final answer
    x = 29,681,348,675.40

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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.