Finding the Fourth Proportional to 85,214,302.20, 127,746,803.70 and 51,149,201.40
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Solution
The fourth proportional to 85,214,302.20, 127,746,803.70 and 51,149,201.40 is: 76,678,994.28
Step by Step Solution
- Step 1: Write the proportion equation
85,214,302.20 : 127,746,803.70 = 51,149,201.40 : x - Step 2: Convert to fraction form
85,214,302.20/127,746,803.70 = 51,149,201.40/x - Step 3: Cross multiply
85,214,302.20x = 127,746,803.70 × 51,149,201.40 - Step 4: Simplify right side
85,214,302.20x = 6,534,146,990,657,565 - Step 5: Solve for x
x = 6,534,146,990,657,565/85,214,302.20 - Step 6: Final answer
x = 76,678,994.28
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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.