Finding the Fourth Proportional to 618,590,472.71, 927,272,808.12 and 290,478,633.26
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Solution
The fourth proportional to 618,590,472.71, 927,272,808.12 and 290,478,633.26 is: 435,430,142.95
Step by Step Solution
- Step 1: Write the proportion equation
618,590,472.71 : 927,272,808.12 = 290,478,633.26 : x - Step 2: Convert to fraction form
618,590,472.71/927,272,808.12 = 290,478,633.26/x - Step 3: Cross multiply
618,590,472.71x = 927,272,808.12 × 290,478,633.26 - Step 4: Simplify right side
618,590,472.71x = 269,352,937,961,859,808 - Step 5: Solve for x
x = 269,352,937,961,859,808/618,590,472.71 - Step 6: Final answer
x = 435,430,142.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.