Finding the Fourth Proportional to 1,342,381,103,138.40, 1,852,486,664,184.80 and 725,083,817,545.80
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Solution
The fourth proportional to 1,342,381,103,138.40, 1,852,486,664,184.80 and 725,083,817,545.80 is: 1,000,616,068,923.70
Step by Step Solution
- Step 1: Write the proportion equation
1,342,381,103,138.40 : 1,852,486,664,184.80 = 725,083,817,545.80 : x - Step 2: Convert to fraction form
1,342,381,103,138.40/1,852,486,664,184.80 = 725,083,817,545.80/x - Step 3: Cross multiply
1,342,381,103,138.40x = 1,852,486,664,184.80 × 725,083,817,545.80 - Step 4: Simplify right side
1,342,381,103,138.40x = 1,343,208,102,419,799,201,546,240 - Step 5: Solve for x
x = 1,343,208,102,419,799,201,546,240/1,342,381,103,138.40 - Step 6: Final answer
x = 1,000,616,068,923.70
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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.