Finding the Fourth Proportional to 7,384,478.16, 11,076,628.12 and 1,919,088.84
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Solution
The fourth proportional to 7,384,478.16, 11,076,628.12 and 1,919,088.84 is: 2,878,610.10
Step by Step Solution
- Step 1: Write the proportion equation
7,384,478.16 : 11,076,628.12 = 1,919,088.84 : x - Step 2: Convert to fraction form
7,384,478.16/11,076,628.12 = 1,919,088.84/x - Step 3: Cross multiply
7,384,478.16x = 11,076,628.12 × 1,919,088.84 - Step 4: Simplify right side
7,384,478.16x = 21,257,033,409,922.18 - Step 5: Solve for x
x = 21,257,033,409,922.18/7,384,478.16 - Step 6: Final answer
x = 2,878,610.10
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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.