Finding the Fourth Proportional to 68,945,355.84, 103,386,237.84 and 20,405,853.12
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Solution
The fourth proportional to 68,945,355.84, 103,386,237.84 and 20,405,853.12 is: 30,599,369.00
Step by Step Solution
- Step 1: Write the proportion equation
68,945,355.84 : 103,386,237.84 = 20,405,853.12 : x - Step 2: Convert to fraction form
68,945,355.84/103,386,237.84 = 20,405,853.12/x - Step 3: Cross multiply
68,945,355.84x = 103,386,237.84 × 20,405,853.12 - Step 4: Simplify right side
68,945,355.84x = 2,109,684,383,992,426.25 - Step 5: Solve for x
x = 2,109,684,383,992,426.25/68,945,355.84 - Step 6: Final answer
x = 30,599,369.00
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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.