Finding the Fourth Proportional to 1,295,464,273,205.60, 1,787,796,893,330.20 and 717,400,791,982.72
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Solution
The fourth proportional to 1,295,464,273,205.60, 1,787,796,893,330.20 and 717,400,791,982.72 is: 990,044,213,265.45
Step by Step Solution
- Step 1: Write the proportion equation
1,295,464,273,205.60 : 1,787,796,893,330.20 = 717,400,791,982.72 : x - Step 2: Convert to fraction form
1,295,464,273,205.60/1,787,796,893,330.20 = 717,400,791,982.72/x - Step 3: Cross multiply
1,295,464,273,205.60x = 1,787,796,893,330.20 × 717,400,791,982.72 - Step 4: Simplify right side
1,295,464,273,205.60x = 1,282,566,907,179,331,802,365,952 - Step 5: Solve for x
x = 1,282,566,907,179,331,802,365,952/1,295,464,273,205.60 - Step 6: Final answer
x = 990,044,213,265.45
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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.