Finding the Fourth Proportional to 20,064,130.73, 27,690,208.07 and 11,363,851.07
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Solution
The fourth proportional to 20,064,130.73, 27,690,208.07 and 11,363,851.07 is: 15,683,081.65
Step by Step Solution
- Step 1: Write the proportion equation
20,064,130.73 : 27,690,208.07 = 11,363,851.07 : x - Step 2: Convert to fraction form
20,064,130.73/27,690,208.07 = 11,363,851.07/x - Step 3: Cross multiply
20,064,130.73x = 27,690,208.07 × 11,363,851.07 - Step 4: Simplify right side
20,064,130.73x = 314,667,400,409,521.81 - Step 5: Solve for x
x = 314,667,400,409,521.81/20,064,130.73 - Step 6: Final answer
x = 15,683,081.65
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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.