Finding the Fourth Proportional to 668,489,816, 922,519,288.56 and 417,739,812.14
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Solution
The fourth proportional to 668,489,816, 922,519,288.56 and 417,739,812.14 is: 576,483,029.47
Step by Step Solution
- Step 1: Write the proportion equation
668,489,816 : 922,519,288.56 = 417,739,812.14 : x - Step 2: Convert to fraction form
668,489,816/922,519,288.56 = 417,739,812.14/x - Step 3: Cross multiply
668,489,816x = 922,519,288.56 × 417,739,812.14 - Step 4: Simplify right side
668,489,816x = 385,373,034,298,580,800 - Step 5: Solve for x
x = 385,373,034,298,580,800/668,489,816 - Step 6: Final answer
x = 576,483,029.47
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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.