Finding the Fourth Proportional to 374,803,478.88, 517,767,565.14 and 299,350,738.92
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Solution
The fourth proportional to 374,803,478.88, 517,767,565.14 and 299,350,738.92 is: 413,534,323.85
Step by Step Solution
- Step 1: Write the proportion equation
374,803,478.88 : 517,767,565.14 = 299,350,738.92 : x - Step 2: Convert to fraction form
374,803,478.88/517,767,565.14 = 299,350,738.92/x - Step 3: Cross multiply
374,803,478.88x = 517,767,565.14 × 299,350,738.92 - Step 4: Simplify right side
374,803,478.88x = 154,994,103,213,468,224 - Step 5: Solve for x
x = 154,994,103,213,468,224/374,803,478.88 - Step 6: Final answer
x = 413,534,323.85
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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.