Finding the Fourth Proportional to 538,273,238.25, 742,817,367.68 and 290,754,594.93
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Solution
The fourth proportional to 538,273,238.25, 742,817,367.68 and 290,754,594.93 is: 401,241,502.45
Step by Step Solution
- Step 1: Write the proportion equation
538,273,238.25 : 742,817,367.68 = 290,754,594.93 : x - Step 2: Convert to fraction form
538,273,238.25/742,817,367.68 = 290,754,594.93/x - Step 3: Cross multiply
538,273,238.25x = 742,817,367.68 × 290,754,594.93 - Step 4: Simplify right side
538,273,238.25x = 215,977,562,845,313,504 - Step 5: Solve for x
x = 215,977,562,845,313,504/538,273,238.25 - Step 6: Final answer
x = 401,241,502.45
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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.