Finding the Fourth Proportional to 7,783,815.68, 10,742,329.86 and 4,346,721.02
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Solution
The fourth proportional to 7,783,815.68, 10,742,329.86 and 4,346,721.02 is: 5,998,845.93
Step by Step Solution
- Step 1: Write the proportion equation
7,783,815.68 : 10,742,329.86 = 4,346,721.02 : x - Step 2: Convert to fraction form
7,783,815.68/10,742,329.86 = 4,346,721.02/x - Step 3: Cross multiply
7,783,815.68x = 10,742,329.86 × 4,346,721.02 - Step 4: Simplify right side
7,783,815.68x = 46,693,911,006,235.65 - Step 5: Solve for x
x = 46,693,911,006,235.65/7,783,815.68 - Step 6: Final answer
x = 5,998,845.93
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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.