Finding the Fourth Proportional to 1,605,802,887.45, 2,408,651,329.17 and 660,368,254.95
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Solution
The fourth proportional to 1,605,802,887.45, 2,408,651,329.17 and 660,368,254.95 is: 990,530,585.95
Step by Step Solution
- Step 1: Write the proportion equation
1,605,802,887.45 : 2,408,651,329.17 = 660,368,254.95 : x - Step 2: Convert to fraction form
1,605,802,887.45/2,408,651,329.17 = 660,368,254.95/x - Step 3: Cross multiply
1,605,802,887.45x = 2,408,651,329.17 × 660,368,254.95 - Step 4: Simplify right side
1,605,802,887.45x = 1,590,596,875,026,991,104 - Step 5: Solve for x
x = 1,590,596,875,026,991,104/1,605,802,887.45 - Step 6: Final answer
x = 990,530,585.95
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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.