Finding the Fourth Proportional to 20,064,131.84, 27,690,209.62 and 11,363,852.18
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Solution
The fourth proportional to 20,064,131.84, 27,690,209.62 and 11,363,852.18 is: 15,683,083.20
Step by Step Solution
- Step 1: Write the proportion equation
20,064,131.84 : 27,690,209.62 = 11,363,852.18 : x - Step 2: Convert to fraction form
20,064,131.84/27,690,209.62 = 11,363,852.18/x - Step 3: Cross multiply
20,064,131.84x = 27,690,209.62 × 11,363,852.18 - Step 4: Simplify right side
20,064,131.84x = 314,667,448,954,894 - Step 5: Solve for x
x = 314,667,448,954,894/20,064,131.84 - Step 6: Final answer
x = 15,683,083.20
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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.