Finding the Fourth Proportional to 115,161,769.74, 172,742,655.43 and 38,484,798.06
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Solution
The fourth proportional to 115,161,769.74, 172,742,655.43 and 38,484,798.06 is: 57,727,197.37
Step by Step Solution
- Step 1: Write the proportion equation
115,161,769.74 : 172,742,655.43 = 38,484,798.06 : x - Step 2: Convert to fraction form
115,161,769.74/172,742,655.43 = 38,484,798.06/x - Step 3: Cross multiply
115,161,769.74x = 172,742,655.43 × 38,484,798.06 - Step 4: Simplify right side
115,161,769.74x = 6,647,966,211,050,933 - Step 5: Solve for x
x = 6,647,966,211,050,933/115,161,769.74 - Step 6: Final answer
x = 57,727,197.37
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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.