Finding the Fourth Proportional to 19,363,908.21, 29,055,660.08 and 7,852,065.09
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Solution
The fourth proportional to 19,363,908.21, 29,055,660.08 and 7,852,065.09 is: 11,782,070.63
Step by Step Solution
- Step 1: Write the proportion equation
19,363,908.21 : 29,055,660.08 = 7,852,065.09 : x - Step 2: Convert to fraction form
19,363,908.21/29,055,660.08 = 7,852,065.09/x - Step 3: Cross multiply
19,363,908.21x = 29,055,660.08 × 7,852,065.09 - Step 4: Simplify right side
19,363,908.21x = 228,146,934,181,074.59 - Step 5: Solve for x
x = 228,146,934,181,074.59/19,363,908.21 - Step 6: Final answer
x = 11,782,070.63
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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.