Finding the Fourth Proportional to 815,497,971.44, 1,125,350,897.64 and 476,437,874
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Solution
The fourth proportional to 815,497,971.44, 1,125,350,897.64 and 476,437,874 is: 657,463,056.87
Step by Step Solution
- Step 1: Write the proportion equation
815,497,971.44 : 1,125,350,897.64 = 476,437,874 : x - Step 2: Convert to fraction form
815,497,971.44/1,125,350,897.64 = 476,437,874/x - Step 3: Cross multiply
815,497,971.44x = 1,125,350,897.64 × 476,437,874 - Step 4: Simplify right side
815,497,971.44x = 536,159,789,175,593,280 - Step 5: Solve for x
x = 536,159,789,175,593,280/815,497,971.44 - Step 6: Final answer
x = 657,463,056.87
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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.