Finding the Fourth Proportional to 1,534,497,622.62, 2,117,602,736.25 and 856,307,462.78
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Solution
The fourth proportional to 1,534,497,622.62, 2,117,602,736.25 and 856,307,462.78 is: 1,181,702,075.99
Step by Step Solution
- Step 1: Write the proportion equation
1,534,497,622.62 : 2,117,602,736.25 = 856,307,462.78 : x - Step 2: Convert to fraction form
1,534,497,622.62/2,117,602,736.25 = 856,307,462.78/x - Step 3: Cross multiply
1,534,497,622.62x = 2,117,602,736.25 × 856,307,462.78 - Step 4: Simplify right side
1,534,497,622.62x = 1,813,319,026,254,222,848 - Step 5: Solve for x
x = 1,813,319,026,254,222,848/1,534,497,622.62 - Step 6: Final answer
x = 1,181,702,075.99
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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.