Finding the Fourth Proportional to 249,169,430.88, 343,843,407.84 and 143,314,797.96
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Solution
The fourth proportional to 249,169,430.88, 343,843,407.84 and 143,314,797.96 is: 197,768,435.52
Step by Step Solution
- Step 1: Write the proportion equation
249,169,430.88 : 343,843,407.84 = 143,314,797.96 : x - Step 2: Convert to fraction form
249,169,430.88/343,843,407.84 = 143,314,797.96/x - Step 3: Cross multiply
249,169,430.88x = 343,843,407.84 × 143,314,797.96 - Step 4: Simplify right side
249,169,430.88x = 49,277,848,524,467,480 - Step 5: Solve for x
x = 49,277,848,524,467,480/249,169,430.88 - Step 6: Final answer
x = 197,768,435.52
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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.