Finding the Fourth Proportional to 1,201,639,860.42, 1,657,734,772.41 and 725,064,401.22
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Solution
The fourth proportional to 1,201,639,860.42, 1,657,734,772.41 and 725,064,401.22 is: 1,000,270,138.94
Step by Step Solution
- Step 1: Write the proportion equation
1,201,639,860.42 : 1,657,734,772.41 = 725,064,401.22 : x - Step 2: Convert to fraction form
1,201,639,860.42/1,657,734,772.41 = 725,064,401.22/x - Step 3: Cross multiply
1,201,639,860.42x = 1,657,734,772.41 × 725,064,401.22 - Step 4: Simplify right side
1,201,639,860.42x = 1,201,964,470,139,029,760 - Step 5: Solve for x
x = 1,201,964,470,139,029,760/1,201,639,860.42 - Step 6: Final answer
x = 1,000,270,138.94
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.