Finding the Fourth Proportional to 2,542,465,670.92, 3,812,226,083.53 and 861,187,669.99
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Solution
The fourth proportional to 2,542,465,670.92, 3,812,226,083.53 and 861,187,669.99 is: 1,291,282,763.77
Step by Step Solution
- Step 1: Write the proportion equation
2,542,465,670.92 : 3,812,226,083.53 = 861,187,669.99 : x - Step 2: Convert to fraction form
2,542,465,670.92/3,812,226,083.53 = 861,187,669.99/x - Step 3: Cross multiply
2,542,465,670.92x = 3,812,226,083.53 × 861,187,669.99 - Step 4: Simplify right side
2,542,465,670.92x = 3,283,042,098,338,620,416 - Step 5: Solve for x
x = 3,283,042,098,338,620,416/2,542,465,670.92 - Step 6: Final answer
x = 1,291,282,763.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.