Finding the Fourth Proportional to 1,393,259,947.83, 1,922,265,877.68 and 790,331,202.14
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Solution
The fourth proportional to 1,393,259,947.83, 1,922,265,877.68 and 790,331,202.14 is: 1,090,411,523.20
Step by Step Solution
- Step 1: Write the proportion equation
1,393,259,947.83 : 1,922,265,877.68 = 790,331,202.14 : x - Step 2: Convert to fraction form
1,393,259,947.83/1,922,265,877.68 = 790,331,202.14/x - Step 3: Cross multiply
1,393,259,947.83x = 1,922,265,877.68 × 790,331,202.14 - Step 4: Simplify right side
1,393,259,947.83x = 1,519,226,701,929,925,376 - Step 5: Solve for x
x = 1,519,226,701,929,925,376/1,393,259,947.83 - Step 6: Final answer
x = 1,090,411,523.20
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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.