Finding the Fourth Proportional to 1,177,732,627.31, 1,625,266,114.44 and 649,095,351.74
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Solution
The fourth proportional to 1,177,732,627.31, 1,625,266,114.44 and 649,095,351.74 is: 895,748,878.61
Step by Step Solution
- Step 1: Write the proportion equation
1,177,732,627.31 : 1,625,266,114.44 = 649,095,351.74 : x - Step 2: Convert to fraction form
1,177,732,627.31/1,625,266,114.44 = 649,095,351.74/x - Step 3: Cross multiply
1,177,732,627.31x = 1,625,266,114.44 × 649,095,351.74 - Step 4: Simplify right side
1,177,732,627.31x = 1,054,952,680,212,941,952 - Step 5: Solve for x
x = 1,054,952,680,212,941,952/1,177,732,627.31 - Step 6: Final answer
x = 895,748,878.61
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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.