Finding the Fourth Proportional to 15,376,877.36, 21,224,518.80 and 10,153,699.28
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Solution
The fourth proportional to 15,376,877.36, 21,224,518.80 and 10,153,699.28 is: 14,015,028.94
Step by Step Solution
- Step 1: Write the proportion equation
15,376,877.36 : 21,224,518.80 = 10,153,699.28 : x - Step 2: Convert to fraction form
15,376,877.36/21,224,518.80 = 10,153,699.28/x - Step 3: Cross multiply
15,376,877.36x = 21,224,518.80 × 10,153,699.28 - Step 4: Simplify right side
15,376,877.36x = 215,507,381,257,906.47 - Step 5: Solve for x
x = 215,507,381,257,906.47/15,376,877.36 - Step 6: Final answer
x = 14,015,028.94
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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.