Finding the Fourth Proportional to 1,395,230,639.12, 2,092,776,392.64 and 521,767,793.60
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Solution
The fourth proportional to 1,395,230,639.12, 2,092,776,392.64 and 521,767,793.60 is: 782,625,675.12
Step by Step Solution
- Step 1: Write the proportion equation
1,395,230,639.12 : 2,092,776,392.64 = 521,767,793.60 : x - Step 2: Convert to fraction form
1,395,230,639.12/2,092,776,392.64 = 521,767,793.60/x - Step 3: Cross multiply
1,395,230,639.12x = 2,092,776,392.64 × 521,767,793.60 - Step 4: Simplify right side
1,395,230,639.12x = 1,091,943,320,885,940,224 - Step 5: Solve for x
x = 1,091,943,320,885,940,224/1,395,230,639.12 - Step 6: Final answer
x = 782,625,675.12
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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.