Finding the Fourth Proportional to 988,254,765,126.12, 1,363,716,731,233.40 and 554,623,405,909.96
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Solution
The fourth proportional to 988,254,765,126.12, 1,363,716,731,233.40 and 554,623,405,909.96 is: 765,338,296,220.15
Step by Step Solution
- Step 1: Write the proportion equation
988,254,765,126.12 : 1,363,716,731,233.40 = 554,623,405,909.96 : x - Step 2: Convert to fraction form
988,254,765,126.12/1,363,716,731,233.40 = 554,623,405,909.96/x - Step 3: Cross multiply
988,254,765,126.12x = 1,363,716,731,233.40 × 554,623,405,909.96 - Step 4: Simplify right side
988,254,765,126.12x = 756,349,218,173,065,759,817,728 - Step 5: Solve for x
x = 756,349,218,173,065,759,817,728/988,254,765,126.12 - Step 6: Final answer
x = 765,338,296,220.15
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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.