Finding the Fourth Proportional to 1,512,956,811.45, 2,267,301,891.35 and 714,421,920.81
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Solution
The fourth proportional to 1,512,956,811.45, 2,267,301,891.35 and 714,421,920.81 is: 1,070,625,519.52
Step by Step Solution
- Step 1: Write the proportion equation
1,512,956,811.45 : 2,267,301,891.35 = 714,421,920.81 : x - Step 2: Convert to fraction form
1,512,956,811.45/2,267,301,891.35 = 714,421,920.81/x - Step 3: Cross multiply
1,512,956,811.45x = 2,267,301,891.35 × 714,421,920.81 - Step 4: Simplify right side
1,512,956,811.45x = 1,619,810,172,270,840,576 - Step 5: Solve for x
x = 1,619,810,172,270,840,576/1,512,956,811.45 - Step 6: Final answer
x = 1,070,625,519.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.