Finding the Fourth Proportional to 1,217,214,860,688.10, 1,679,911,475,546.50 and 736,042,057,087.80
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Solution
The fourth proportional to 1,217,214,860,688.10, 1,679,911,475,546.50 and 736,042,057,087.80 is: 1,015,831,746,818.84
Step by Step Solution
- Step 1: Write the proportion equation
1,217,214,860,688.10 : 1,679,911,475,546.50 = 736,042,057,087.80 : x - Step 2: Convert to fraction form
1,217,214,860,688.10/1,679,911,475,546.50 = 736,042,057,087.80/x - Step 3: Cross multiply
1,217,214,860,688.10x = 1,679,911,475,546.50 × 736,042,057,087.80 - Step 4: Simplify right side
1,217,214,860,688.10x = 1,236,485,498,186,647,348,445,184 - Step 5: Solve for x
x = 1,236,485,498,186,647,348,445,184/1,217,214,860,688.10 - Step 6: Final answer
x = 1,015,831,746,818.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.