Finding the Fourth Proportional to 2,197,657,908.90, 3,296,486,863.35 and 817,186,767.30
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Solution
The fourth proportional to 2,197,657,908.90, 3,296,486,863.35 and 817,186,767.30 is: 1,225,780,150.95
Step by Step Solution
- Step 1: Write the proportion equation
2,197,657,908.90 : 3,296,486,863.35 = 817,186,767.30 : x - Step 2: Convert to fraction form
2,197,657,908.90/3,296,486,863.35 = 817,186,767.30/x - Step 3: Cross multiply
2,197,657,908.90x = 3,296,486,863.35 × 817,186,767.30 - Step 4: Simplify right side
2,197,657,908.90x = 2,693,845,443,307,902,976 - Step 5: Solve for x
x = 2,693,845,443,307,902,976/2,197,657,908.90 - Step 6: Final answer
x = 1,225,780,150.95
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1.5x scale
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.