Finding the Fourth Proportional to 911,838,844.68, 1,258,338,681.81 and 494,151,129.97
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Solution
The fourth proportional to 911,838,844.68, 1,258,338,681.81 and 494,151,129.97 is: 681,929,142.56
Step by Step Solution
- Step 1: Write the proportion equation
911,838,844.68 : 1,258,338,681.81 = 494,151,129.97 : x - Step 2: Convert to fraction form
911,838,844.68/1,258,338,681.81 = 494,151,129.97/x - Step 3: Cross multiply
911,838,844.68x = 1,258,338,681.81 × 494,151,129.97 - Step 4: Simplify right side
911,838,844.68x = 621,809,481,501,371,776 - Step 5: Solve for x
x = 621,809,481,501,371,776/911,838,844.68 - Step 6: Final answer
x = 681,929,142.56
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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.