Finding the Fourth Proportional to 249,939,651.42, 344,890,460.79 and 138,427,570.98
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Solution
The fourth proportional to 249,939,651.42, 344,890,460.79 and 138,427,570.98 is: 191,015,505.02
Step by Step Solution
- Step 1: Write the proportion equation
249,939,651.42 : 344,890,460.79 = 138,427,570.98 : x - Step 2: Convert to fraction form
249,939,651.42/344,890,460.79 = 138,427,570.98/x - Step 3: Cross multiply
249,939,651.42x = 344,890,460.79 × 138,427,570.98 - Step 4: Simplify right side
249,939,651.42x = 47,742,348,741,332,632 - Step 5: Solve for x
x = 47,742,348,741,332,632/249,939,651.42 - Step 6: Final answer
x = 191,015,505.02
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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.