Home / 39,819,157,493.03-54,950,459,387.47-21,508,215,085.45

Finding the Fourth Proportional to 39,819,157,493.03, 54,950,459,387.47 and 21,508,215,085.45

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Solution

The fourth proportional to 39,819,157,493.03, 54,950,459,387.47 and 21,508,215,085.45 is: 29,681,348,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819,157,493.03 : 54,950,459,387.47 = 21,508,215,085.45 : x
  2. Step 2: Convert to fraction form
    39,819,157,493.03/54,950,459,387.47 = 21,508,215,085.45/x
  3. Step 3: Cross multiply
    39,819,157,493.03x = 54,950,459,387.47 × 21,508,215,085.45
  4. Step 4: Simplify right side
    39,819,157,493.03x = 1,181,886,299,549,937,172,480
  5. Step 5: Solve for x
    x = 1,181,886,299,549,937,172,480/39,819,157,493.03
  6. Step 6: Final answer
    x = 29,681,348,726.60

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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.