Home / 39,819,157,493.53-54,950,459,388.16-21,508,215,085.95

Finding the Fourth Proportional to 39,819,157,493.53, 54,950,459,388.16 and 21,508,215,085.95

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Solution

The fourth proportional to 39,819,157,493.53, 54,950,459,388.16 and 21,508,215,085.95 is: 29,681,348,727.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819,157,493.53 : 54,950,459,388.16 = 21,508,215,085.95 : x
  2. Step 2: Convert to fraction form
    39,819,157,493.53/54,950,459,388.16 = 21,508,215,085.95/x
  3. Step 3: Cross multiply
    39,819,157,493.53x = 54,950,459,388.16 × 21,508,215,085.95
  4. Step 4: Simplify right side
    39,819,157,493.53x = 1,181,886,299,592,308,031,488
  5. Step 5: Solve for x
    x = 1,181,886,299,592,308,031,488/39,819,157,493.53
  6. Step 6: Final answer
    x = 29,681,348,727.29

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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.