Finding the Fourth Proportional to 347,948,225.30, 521,839,931.79 and 129,701,021.78
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Solution
The fourth proportional to 347,948,225.30, 521,839,931.79 and 129,701,021.78 is: 194,520,814.99
Step by Step Solution
- Step 1: Write the proportion equation
347,948,225.30 : 521,839,931.79 = 129,701,021.78 : x - Step 2: Convert to fraction form
347,948,225.30/521,839,931.79 = 129,701,021.78/x - Step 3: Cross multiply
347,948,225.30x = 521,839,931.79 × 129,701,021.78 - Step 4: Simplify right side
347,948,225.30x = 67,683,172,358,768,504 - Step 5: Solve for x
x = 67,683,172,358,768,504/347,948,225.30 - Step 6: Final answer
x = 194,520,814.99
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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.