Finding the Fourth Proportional to 7,069,612.16, 9,756,129.48 and 4,013,891.36
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Solution
The fourth proportional to 7,069,612.16, 9,756,129.48 and 4,013,891.36 is: 5,539,206.81
Step by Step Solution
- Step 1: Write the proportion equation
7,069,612.16 : 9,756,129.48 = 4,013,891.36 : x - Step 2: Convert to fraction form
7,069,612.16/9,756,129.48 = 4,013,891.36/x - Step 3: Cross multiply
7,069,612.16x = 9,756,129.48 × 4,013,891.36 - Step 4: Simplify right side
7,069,612.16x = 39,160,043,826,813.30 - Step 5: Solve for x
x = 39,160,043,826,813.30/7,069,612.16 - Step 6: Final answer
x = 5,539,206.81
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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.