Finding the Fourth Proportional to 7,782,355.68, 10,742,516.76 and 4,685,023.08
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Solution
The fourth proportional to 7,782,355.68, 10,742,516.76 and 4,685,023.08 is: 6,467,057.15
Step by Step Solution
- Step 1: Write the proportion equation
7,782,355.68 : 10,742,516.76 = 4,685,023.08 : x - Step 2: Convert to fraction form
7,782,355.68/10,742,516.76 = 4,685,023.08/x - Step 3: Cross multiply
7,782,355.68x = 10,742,516.76 × 4,685,023.08 - Step 4: Simplify right side
7,782,355.68x = 50,328,938,957,886.82 - Step 5: Solve for x
x = 50,328,938,957,886.82/7,782,355.68 - Step 6: Final answer
x = 6,467,057.15
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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.