Finding the Fourth Proportional to 305,894,701.43, 458,841,636.62 and 142,042,860.53
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Solution
The fourth proportional to 305,894,701.43, 458,841,636.62 and 142,042,860.53 is: 213,064,097.84
Step by Step Solution
- Step 1: Write the proportion equation
305,894,701.43 : 458,841,636.62 = 142,042,860.53 : x - Step 2: Convert to fraction form
305,894,701.43/458,841,636.62 = 142,042,860.53/x - Step 3: Cross multiply
305,894,701.43x = 458,841,636.62 × 142,042,860.53 - Step 4: Simplify right side
305,894,701.43x = 65,175,178,595,061,392 - Step 5: Solve for x
x = 65,175,178,595,061,392/305,894,701.43 - Step 6: Final answer
x = 213,064,097.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.