Finding the Fourth Proportional to 7,813,509.12, 10,774,425.60 and 5,780,551.68
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Solution
The fourth proportional to 7,813,509.12, 10,774,425.60 and 5,780,551.68 is: 7,971,082.27
Step by Step Solution
- Step 1: Write the proportion equation
7,813,509.12 : 10,774,425.60 = 5,780,551.68 : x - Step 2: Convert to fraction form
7,813,509.12/10,774,425.60 = 5,780,551.68/x - Step 3: Cross multiply
7,813,509.12x = 10,774,425.60 × 5,780,551.68 - Step 4: Simplify right side
7,813,509.12x = 62,282,124,003,115 - Step 5: Solve for x
x = 62,282,124,003,115/7,813,509.12 - Step 6: Final answer
x = 7,971,082.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.