Finding the Fourth Proportional to 318,920,737.80, 478,381,106.70 and 173,424,001.80
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Solution
The fourth proportional to 318,920,737.80, 478,381,106.70 and 173,424,001.80 is: 260,136,002.70
Step by Step Solution
- Step 1: Write the proportion equation
318,920,737.80 : 478,381,106.70 = 173,424,001.80 : x - Step 2: Convert to fraction form
318,920,737.80/478,381,106.70 = 173,424,001.80/x - Step 3: Cross multiply
318,920,737.80x = 478,381,106.70 × 173,424,001.80 - Step 4: Simplify right side
318,920,737.80x = 82,962,765,909,426,800 - Step 5: Solve for x
x = 82,962,765,909,426,800/318,920,737.80 - Step 6: Final answer
x = 260,136,002.70
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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.