Finding the Fourth Proportional to 718,890,638,221.10, 992,100,265,703.08 and 398,106,473,329.14
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Solution
The fourth proportional to 718,890,638,221.10, 992,100,265,703.08 and 398,106,473,329.14 is: 549,404,202,766.21
Step by Step Solution
- Step 1: Write the proportion equation
718,890,638,221.10 : 992,100,265,703.08 = 398,106,473,329.14 : x - Step 2: Convert to fraction form
718,890,638,221.10/992,100,265,703.08 = 398,106,473,329.14/x - Step 3: Cross multiply
718,890,638,221.10x = 992,100,265,703.08 × 398,106,473,329.14 - Step 4: Simplify right side
718,890,638,221.10x = 394,961,537,967,955,889,881,088 - Step 5: Solve for x
x = 394,961,537,967,955,889,881,088/718,890,638,221.10 - Step 6: Final answer
x = 549,404,202,766.21
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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.