Finding the Fourth Proportional to 18,627,420.90, 27,945,781.53 and 6,497,058.66
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Solution
The fourth proportional to 18,627,420.90, 27,945,781.53 and 6,497,058.66 is: 9,747,209.93
Step by Step Solution
- Step 1: Write the proportion equation
18,627,420.90 : 27,945,781.53 = 6,497,058.66 : x - Step 2: Convert to fraction form
18,627,420.90/27,945,781.53 = 6,497,058.66/x - Step 3: Cross multiply
18,627,420.90x = 27,945,781.53 × 6,497,058.66 - Step 4: Simplify right side
18,627,420.90x = 181,565,381,899,954.56 - Step 5: Solve for x
x = 181,565,381,899,954.56/18,627,420.90 - Step 6: Final answer
x = 9,747,209.93
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.