Finding the Fourth Proportional to 1,509,999,118.68, 2,083,863,434.13 and 840,944,161.74
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Solution
The fourth proportional to 1,509,999,118.68, 2,083,863,434.13 and 840,944,161.74 is: 1,160,538,948.08
Step by Step Solution
- Step 1: Write the proportion equation
1,509,999,118.68 : 2,083,863,434.13 = 840,944,161.74 : x - Step 2: Convert to fraction form
1,509,999,118.68/2,083,863,434.13 = 840,944,161.74/x - Step 3: Cross multiply
1,509,999,118.68x = 2,083,863,434.13 × 840,944,161.74 - Step 4: Simplify right side
1,509,999,118.68x = 1,752,412,788,795,090,688 - Step 5: Solve for x
x = 1,752,412,788,795,090,688/1,509,999,118.68 - Step 6: Final answer
x = 1,160,538,948.08
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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.