Finding the Fourth Proportional to 319,860,436.02, 479,790,653.85 and 77,523,340.02
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Solution
The fourth proportional to 319,860,436.02, 479,790,653.85 and 77,523,340.02 is: 116,285,009.99
Step by Step Solution
- Step 1: Write the proportion equation
319,860,436.02 : 479,790,653.85 = 77,523,340.02 : x - Step 2: Convert to fraction form
319,860,436.02/479,790,653.85 = 77,523,340.02/x - Step 3: Cross multiply
319,860,436.02x = 479,790,653.85 × 77,523,340.02 - Step 4: Simplify right side
319,860,436.02x = 37,194,973,996,831,672 - Step 5: Solve for x
x = 37,194,973,996,831,672/319,860,436.02 - Step 6: Final answer
x = 116,285,009.99
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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.