Finding the Fourth Proportional to 1,397,251,729.80, 2,096,064,218.70 and 476,896,811.40
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Solution
The fourth proportional to 1,397,251,729.80, 2,096,064,218.70 and 476,896,811.40 is: 715,408,913.85
Step by Step Solution
- Step 1: Write the proportion equation
1,397,251,729.80 : 2,096,064,218.70 = 476,896,811.40 : x - Step 2: Convert to fraction form
1,397,251,729.80/2,096,064,218.70 = 476,896,811.40/x - Step 3: Cross multiply
1,397,251,729.80x = 2,096,064,218.70 × 476,896,811.40 - Step 4: Simplify right side
1,397,251,729.80x = 999,606,342,387,662,208 - Step 5: Solve for x
x = 999,606,342,387,662,208/1,397,251,729.80 - Step 6: Final answer
x = 715,408,913.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.