Finding the Fourth Proportional to 1,867,950,354, 2,577,802,130.46 and 1,115,329,290.54
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Solution
The fourth proportional to 1,867,950,354, 2,577,802,130.46 and 1,115,329,290.54 is: 1,539,172,716.86
Step by Step Solution
- Step 1: Write the proportion equation
1,867,950,354 : 2,577,802,130.46 = 1,115,329,290.54 : x - Step 2: Convert to fraction form
1,867,950,354/2,577,802,130.46 = 1,115,329,290.54/x - Step 3: Cross multiply
1,867,950,354x = 2,577,802,130.46 × 1,115,329,290.54 - Step 4: Simplify right side
1,867,950,354x = 2,875,098,221,318,452,224 - Step 5: Solve for x
x = 2,875,098,221,318,452,224/1,867,950,354 - Step 6: Final answer
x = 1,539,172,716.86
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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.