Finding the Fourth Proportional to 7,778,701.92, 10,734,547.28 and 4,515,819.96
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Solution
The fourth proportional to 7,778,701.92, 10,734,547.28 and 4,515,819.96 is: 6,231,795.92
Step by Step Solution
- Step 1: Write the proportion equation
7,778,701.92 : 10,734,547.28 = 4,515,819.96 : x - Step 2: Convert to fraction form
7,778,701.92/10,734,547.28 = 4,515,819.96/x - Step 3: Cross multiply
7,778,701.92x = 10,734,547.28 × 4,515,819.96 - Step 4: Simplify right side
7,778,701.92x = 48,475,282,868,587.70 - Step 5: Solve for x
x = 48,475,282,868,587.70/7,778,701.92 - Step 6: Final answer
x = 6,231,795.92
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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.