Finding the Fourth Proportional to 1,201,999,142.52, 1,660,314,813.12 and 993,995,497.08
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Solution
The fourth proportional to 1,201,999,142.52, 1,660,314,813.12 and 993,995,497.08 is: 1,373,000,520.21
Step by Step Solution
- Step 1: Write the proportion equation
1,201,999,142.52 : 1,660,314,813.12 = 993,995,497.08 : x - Step 2: Convert to fraction form
1,201,999,142.52/1,660,314,813.12 = 993,995,497.08/x - Step 3: Cross multiply
1,201,999,142.52x = 1,660,314,813.12 × 993,995,497.08 - Step 4: Simplify right side
1,201,999,142.52x = 1,650,345,447,976,501,760 - Step 5: Solve for x
x = 1,650,345,447,976,501,760/1,201,999,142.52 - Step 6: Final answer
x = 1,373,000,520.21
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.