Finding the Fourth Proportional to 249,939,659.58, 344,890,472.16 and 138,427,579.26
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Solution
The fourth proportional to 249,939,659.58, 344,890,472.16 and 138,427,579.26 is: 191,015,516.51
Step by Step Solution
- Step 1: Write the proportion equation
249,939,659.58 : 344,890,472.16 = 138,427,579.26 : x - Step 2: Convert to fraction form
249,939,659.58/344,890,472.16 = 138,427,579.26/x - Step 3: Cross multiply
249,939,659.58x = 344,890,472.16 × 138,427,579.26 - Step 4: Simplify right side
249,939,659.58x = 47,742,353,170,947,224 - Step 5: Solve for x
x = 47,742,353,170,947,224/249,939,659.58 - Step 6: Final answer
x = 191,015,516.51
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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.