Finding the Fourth Proportional to 1,117,551,661.06, 1,541,736,700.99 and 665,175,971.48
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Solution
The fourth proportional to 1,117,551,661.06, 1,541,736,700.99 and 665,175,971.48 is: 917,654,407.92
Step by Step Solution
- Step 1: Write the proportion equation
1,117,551,661.06 : 1,541,736,700.99 = 665,175,971.48 : x - Step 2: Convert to fraction form
1,117,551,661.06/1,541,736,700.99 = 665,175,971.48/x - Step 3: Cross multiply
1,117,551,661.06x = 1,541,736,700.99 × 665,175,971.48 - Step 4: Simplify right side
1,117,551,661.06x = 1,025,526,207,846,331,136 - Step 5: Solve for x
x = 1,025,526,207,846,331,136/1,117,551,661.06 - Step 6: Final answer
x = 917,654,407.92
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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.