Finding the Fourth Proportional to 19,695,540.78, 27,184,381.20 and 11,549,403.18
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Solution
The fourth proportional to 19,695,540.78, 27,184,381.20 and 11,549,403.18 is: 15,940,835.65
Step by Step Solution
- Step 1: Write the proportion equation
19,695,540.78 : 27,184,381.20 = 11,549,403.18 : x - Step 2: Convert to fraction form
19,695,540.78/27,184,381.20 = 11,549,403.18/x - Step 3: Cross multiply
19,695,540.78x = 27,184,381.20 × 11,549,403.18 - Step 4: Simplify right side
19,695,540.78x = 313,963,378,677,612.19 - Step 5: Solve for x
x = 313,963,378,677,612.19/19,695,540.78 - Step 6: Final answer
x = 15,940,835.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.