Finding the Fourth Proportional to 1,243,260,748.20, 1,863,971,751.16 and 751,864,772.12
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Solution
The fourth proportional to 1,243,260,748.20, 1,863,971,751.16 and 751,864,772.12 is: 1,127,241,166.39
Step by Step Solution
- Step 1: Write the proportion equation
1,243,260,748.20 : 1,863,971,751.16 = 751,864,772.12 : x - Step 2: Convert to fraction form
1,243,260,748.20/1,863,971,751.16 = 751,864,772.12/x - Step 3: Cross multiply
1,243,260,748.20x = 1,863,971,751.16 × 751,864,772.12 - Step 4: Simplify right side
1,243,260,748.20x = 1,401,454,695,924,030,720 - Step 5: Solve for x
x = 1,401,454,695,924,030,720/1,243,260,748.20 - Step 6: Final answer
x = 1,127,241,166.39
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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.