Finding the Fourth Proportional to 1,508,470,317.68, 2,081,870,259.73 and 913,737,351.74
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Solution
The fourth proportional to 1,508,470,317.68, 2,081,870,259.73 and 913,737,351.74 is: 1,261,067,317.99
Step by Step Solution
- Step 1: Write the proportion equation
1,508,470,317.68 : 2,081,870,259.73 = 913,737,351.74 : x - Step 2: Convert to fraction form
1,508,470,317.68/2,081,870,259.73 = 913,737,351.74/x - Step 3: Cross multiply
1,508,470,317.68x = 2,081,870,259.73 × 913,737,351.74 - Step 4: Simplify right side
1,508,470,317.68x = 1,902,282,617,779,262,464 - Step 5: Solve for x
x = 1,902,282,617,779,262,464/1,508,470,317.68 - Step 6: Final answer
x = 1,261,067,317.99
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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.