Finding the Fourth Proportional to 17,622,781.60, 24,319,857.95 and 9,888,395.96
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Solution
The fourth proportional to 17,622,781.60, 24,319,857.95 and 9,888,395.96 is: 13,646,221.72
Step by Step Solution
- Step 1: Write the proportion equation
17,622,781.60 : 24,319,857.95 = 9,888,395.96 : x - Step 2: Convert to fraction form
17,622,781.60/24,319,857.95 = 9,888,395.96/x - Step 3: Cross multiply
17,622,781.60x = 24,319,857.95 × 9,888,395.96 - Step 4: Simplify right side
17,622,781.60x = 240,484,385,100,553.91 - Step 5: Solve for x
x = 240,484,385,100,553.91/17,622,781.60 - Step 6: Final answer
x = 13,646,221.72
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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.