Finding the Fourth Proportional to 1,177,927,436.78, 1,625,539,466.26 and 649,300,250.80
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Solution
The fourth proportional to 1,177,927,436.78, 1,625,539,466.26 and 649,300,250.80 is: 896,034,127.55
Step by Step Solution
- Step 1: Write the proportion equation
1,177,927,436.78 : 1,625,539,466.26 = 649,300,250.80 : x - Step 2: Convert to fraction form
1,177,927,436.78/1,625,539,466.26 = 649,300,250.80/x - Step 3: Cross multiply
1,177,927,436.78x = 1,625,539,466.26 × 649,300,250.80 - Step 4: Simplify right side
1,177,927,436.78x = 1,055,463,183,127,916,032 - Step 5: Solve for x
x = 1,055,463,183,127,916,032/1,177,927,436.78 - Step 6: Final answer
x = 896,034,127.55
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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.