Finding the Fourth Proportional to 18,121,305.06, 25,007,405.04 and 9,972,543.06
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Solution
The fourth proportional to 18,121,305.06, 25,007,405.04 and 9,972,543.06 is: 13,762,111.66
Step by Step Solution
- Step 1: Write the proportion equation
18,121,305.06 : 25,007,405.04 = 9,972,543.06 : x - Step 2: Convert to fraction form
18,121,305.06/25,007,405.04 = 9,972,543.06/x - Step 3: Cross multiply
18,121,305.06x = 25,007,405.04 × 9,972,543.06 - Step 4: Simplify right side
18,121,305.06x = 249,387,423,580,261.03 - Step 5: Solve for x
x = 249,387,423,580,261.03/18,121,305.06 - Step 6: Final answer
x = 13,762,111.66
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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.