Finding the Fourth Proportional to 1,207,187,374,813.30, 1,665,923,756,446.10 and 658,490,637,169.90
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Solution
The fourth proportional to 1,207,187,374,813.30, 1,665,923,756,446.10 and 658,490,637,169.90 is: 908,719,904,421.07
Step by Step Solution
- Step 1: Write the proportion equation
1,207,187,374,813.30 : 1,665,923,756,446.10 = 658,490,637,169.90 : x - Step 2: Convert to fraction form
1,207,187,374,813.30/1,665,923,756,446.10 = 658,490,637,169.90/x - Step 3: Cross multiply
1,207,187,374,813.30x = 1,665,923,756,446.10 × 658,490,637,169.90 - Step 4: Simplify right side
1,207,187,374,813.30x = 1,096,995,195,858,665,802,301,440 - Step 5: Solve for x
x = 1,096,995,195,858,665,802,301,440/1,207,187,374,813.30 - Step 6: Final answer
x = 908,719,904,421.07
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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.