Finding the Fourth Proportional to 167,742,752.21, 231,482,790.81 and 92,387,633.07
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Solution
The fourth proportional to 167,742,752.21, 231,482,790.81 and 92,387,633.07 is: 127,493,717.96
Step by Step Solution
- Step 1: Write the proportion equation
167,742,752.21 : 231,482,790.81 = 92,387,633.07 : x - Step 2: Convert to fraction form
167,742,752.21/231,482,790.81 = 92,387,633.07/x - Step 3: Cross multiply
167,742,752.21x = 231,482,790.81 × 92,387,633.07 - Step 4: Simplify right side
167,742,752.21x = 21,386,147,139,373,848 - Step 5: Solve for x
x = 21,386,147,139,373,848/167,742,752.21 - Step 6: Final answer
x = 127,493,717.96
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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.