Finding the Fourth Proportional to 1,207,420,292,041.40, 1,666,245,407,629.30 and 658,709,934,229.57
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Solution
The fourth proportional to 1,207,420,292,041.40, 1,666,245,407,629.30 and 658,709,934,229.57 is: 909,022,657,731.01
Step by Step Solution
- Step 1: Write the proportion equation
1,207,420,292,041.40 : 1,666,245,407,629.30 = 658,709,934,229.57 : x - Step 2: Convert to fraction form
1,207,420,292,041.40/1,666,245,407,629.30 = 658,709,934,229.57/x - Step 3: Cross multiply
1,207,420,292,041.40x = 1,666,245,407,629.30 × 658,709,934,229.57 - Step 4: Simplify right side
1,207,420,292,041.40x = 1,097,572,402,869,819,213,348,864 - Step 5: Solve for x
x = 1,097,572,402,869,819,213,348,864/1,207,420,292,041.40 - Step 6: Final answer
x = 909,022,657,731.01
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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.