Finding the Fourth Proportional to 431,942,619.42, 596,097,730.41 and 243,777,486.09
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Solution
The fourth proportional to 431,942,619.42, 596,097,730.41 and 243,777,486.09 is: 336,422,477.55
Step by Step Solution
- Step 1: Write the proportion equation
431,942,619.42 : 596,097,730.41 = 243,777,486.09 : x - Step 2: Convert to fraction form
431,942,619.42/596,097,730.41 = 243,777,486.09/x - Step 3: Cross multiply
431,942,619.42x = 596,097,730.41 × 243,777,486.09 - Step 4: Simplify right side
431,942,619.42x = 145,315,206,183,304,352 - Step 5: Solve for x
x = 145,315,206,183,304,352/431,942,619.42 - Step 6: Final answer
x = 336,422,477.55
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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.