Finding the Fourth Proportional to 5,161,807.37, 7,742,685.14 and 1,323,612.65
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Solution
The fourth proportional to 5,161,807.37, 7,742,685.14 and 1,323,612.65 is: 1,985,412.33
Step by Step Solution
- Step 1: Write the proportion equation
5,161,807.37 : 7,742,685.14 = 1,323,612.65 : x - Step 2: Convert to fraction form
5,161,807.37/7,742,685.14 = 1,323,612.65/x - Step 3: Cross multiply
5,161,807.37x = 7,742,685.14 × 1,323,612.65 - Step 4: Simplify right side
5,161,807.37x = 10,248,316,013,973.22 - Step 5: Solve for x
x = 10,248,316,013,973.22/5,161,807.37 - Step 6: Final answer
x = 1,985,412.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.