Finding the Fourth Proportional to 564,642,792.18, 779,267,769.42 and 341,747,138.52
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Solution
The fourth proportional to 564,642,792.18, 779,267,769.42 and 341,747,138.52 is: 471,647,799.33
Step by Step Solution
- Step 1: Write the proportion equation
564,642,792.18 : 779,267,769.42 = 341,747,138.52 : x - Step 2: Convert to fraction form
564,642,792.18/779,267,769.42 = 341,747,138.52/x - Step 3: Cross multiply
564,642,792.18x = 779,267,769.42 × 341,747,138.52 - Step 4: Simplify right side
564,642,792.18x = 266,312,530,340,148,128 - Step 5: Solve for x
x = 266,312,530,340,148,128/564,642,792.18 - Step 6: Final answer
x = 471,647,799.33
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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.