Finding the Fourth Proportional to 1,534,497,617.25, 2,117,602,728.84 and 856,307,457.42
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Solution
The fourth proportional to 1,534,497,617.25, 2,117,602,728.84 and 856,307,457.42 is: 1,181,702,068.60
Step by Step Solution
- Step 1: Write the proportion equation
1,534,497,617.25 : 2,117,602,728.84 = 856,307,457.42 : x - Step 2: Convert to fraction form
1,534,497,617.25/2,117,602,728.84 = 856,307,457.42/x - Step 3: Cross multiply
1,534,497,617.25x = 2,117,602,728.84 × 856,307,457.42 - Step 4: Simplify right side
1,534,497,617.25x = 1,813,319,008,558,633,984 - Step 5: Solve for x
x = 1,813,319,008,558,633,984/1,534,497,617.25 - Step 6: Final answer
x = 1,181,702,068.60
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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.