Finding the Fourth Proportional to 1,304,331,656.80, 1,956,497,485.20 and 891,083,135.20
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Solution
The fourth proportional to 1,304,331,656.80, 1,956,497,485.20 and 891,083,135.20 is: 1,336,624,702.80
Step by Step Solution
- Step 1: Write the proportion equation
1,304,331,656.80 : 1,956,497,485.20 = 891,083,135.20 : x - Step 2: Convert to fraction form
1,304,331,656.80/1,956,497,485.20 = 891,083,135.20/x - Step 3: Cross multiply
1,304,331,656.80x = 1,956,497,485.20 × 891,083,135.20 - Step 4: Simplify right side
1,304,331,656.80x = 1,743,401,913,122,931,712 - Step 5: Solve for x
x = 1,743,401,913,122,931,712/1,304,331,656.80 - Step 6: Final answer
x = 1,336,624,702.80
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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.