Finding the Fourth Proportional to 1,534,497,617.63, 2,117,602,729.35 and 856,307,457.80
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Solution
The fourth proportional to 1,534,497,617.63, 2,117,602,729.35 and 856,307,457.80 is: 1,181,702,069.11
Step by Step Solution
- Step 1: Write the proportion equation
1,534,497,617.63 : 2,117,602,729.35 = 856,307,457.80 : x - Step 2: Convert to fraction form
1,534,497,617.63/2,117,602,729.35 = 856,307,457.80/x - Step 3: Cross multiply
1,534,497,617.63x = 2,117,602,729.35 × 856,307,457.80 - Step 4: Simplify right side
1,534,497,617.63x = 1,813,319,009,789,451,776 - Step 5: Solve for x
x = 1,813,319,009,789,451,776/1,534,497,617.63 - Step 6: Final answer
x = 1,181,702,069.11
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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.