Finding the Fourth Proportional to 815,497,969.44, 1,125,350,894.88 and 476,437,872
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Solution
The fourth proportional to 815,497,969.44, 1,125,350,894.88 and 476,437,872 is: 657,463,054.11
Step by Step Solution
- Step 1: Write the proportion equation
815,497,969.44 : 1,125,350,894.88 = 476,437,872 : x - Step 2: Convert to fraction form
815,497,969.44/1,125,350,894.88 = 476,437,872/x - Step 3: Cross multiply
815,497,969.44x = 1,125,350,894.88 × 476,437,872 - Step 4: Simplify right side
815,497,969.44x = 536,159,785,609,922,944 - Step 5: Solve for x
x = 536,159,785,609,922,944/815,497,969.44 - Step 6: Final answer
x = 657,463,054.11
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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.