Finding the Fourth Proportional to 1,238,331,766.63, 1,857,766,388.51 and 376,666,363.75
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Solution
The fourth proportional to 1,238,331,766.63, 1,857,766,388.51 and 376,666,363.75 is: 565,081,288.48
Step by Step Solution
- Step 1: Write the proportion equation
1,238,331,766.63 : 1,857,766,388.51 = 376,666,363.75 : x - Step 2: Convert to fraction form
1,238,331,766.63/1,857,766,388.51 = 376,666,363.75/x - Step 3: Cross multiply
1,238,331,766.63x = 1,857,766,388.51 × 376,666,363.75 - Step 4: Simplify right side
1,238,331,766.63x = 699,758,110,257,031,424 - Step 5: Solve for x
x = 699,758,110,257,031,424/1,238,331,766.63 - Step 6: Final answer
x = 565,081,288.48
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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.