Finding the Fourth Proportional to 424,642,802.21, 636,668,074.87 and 188,163,706.67
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Solution
The fourth proportional to 424,642,802.21, 636,668,074.87 and 188,163,706.67 is: 282,114,342.37
Step by Step Solution
- Step 1: Write the proportion equation
424,642,802.21 : 636,668,074.87 = 188,163,706.67 : x - Step 2: Convert to fraction form
424,642,802.21/636,668,074.87 = 188,163,706.67/x - Step 3: Cross multiply
424,642,802.21x = 636,668,074.87 × 188,163,706.67 - Step 4: Simplify right side
424,642,802.21x = 119,797,824,885,781,632 - Step 5: Solve for x
x = 119,797,824,885,781,632/424,642,802.21 - Step 6: Final answer
x = 282,114,342.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.