Finding the Fourth Proportional to 249,939,653.92, 344,890,464.24 and 138,427,573.48
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Solution
The fourth proportional to 249,939,653.92, 344,890,464.24 and 138,427,573.48 is: 191,015,508.47
Step by Step Solution
- Step 1: Write the proportion equation
249,939,653.92 : 344,890,464.24 = 138,427,573.48 : x - Step 2: Convert to fraction form
249,939,653.92/344,890,464.24 = 138,427,573.48/x - Step 3: Cross multiply
249,939,653.92x = 344,890,464.24 × 138,427,573.48 - Step 4: Simplify right side
249,939,653.92x = 47,742,350,081,133,912 - Step 5: Solve for x
x = 47,742,350,081,133,912/249,939,653.92 - Step 6: Final answer
x = 191,015,508.47
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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.