Finding the Fourth Proportional to 623,437,772.97, 860,343,565.18 and 351,915,409.66
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Solution
The fourth proportional to 623,437,772.97, 860,343,565.18 and 351,915,409.66 is: 485,642,948.37
Step by Step Solution
- Step 1: Write the proportion equation
623,437,772.97 : 860,343,565.18 = 351,915,409.66 : x - Step 2: Convert to fraction form
623,437,772.97/860,343,565.18 = 351,915,409.66/x - Step 3: Cross multiply
623,437,772.97x = 860,343,565.18 × 351,915,409.66 - Step 4: Simplify right side
623,437,772.97x = 302,768,158,188,664,640 - Step 5: Solve for x
x = 302,768,158,188,664,640/623,437,772.97 - Step 6: Final answer
x = 485,642,948.37
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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.