Finding the Fourth Proportional to 115,638,480, 159,616,830.96 and 74,385,376.02
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Solution
The fourth proportional to 115,638,480, 159,616,830.96 and 74,385,376.02 is: 102,674,801.59
Step by Step Solution
- Step 1: Write the proportion equation
115,638,480 : 159,616,830.96 = 74,385,376.02 : x - Step 2: Convert to fraction form
115,638,480/159,616,830.96 = 74,385,376.02/x - Step 3: Cross multiply
115,638,480x = 159,616,830.96 × 74,385,376.02 - Step 4: Simplify right side
115,638,480x = 11,873,157,990,080,378 - Step 5: Solve for x
x = 11,873,157,990,080,378/115,638,480 - Step 6: Final answer
x = 102,674,801.59
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.