Finding the Fourth Proportional to 3,781,724,688.75, 5,673,352,343.70 and 1,328,252,910.51
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Solution
The fourth proportional to 3,781,724,688.75, 5,673,352,343.70 and 1,328,252,910.51 is: 1,992,648,165.34
Step by Step Solution
- Step 1: Write the proportion equation
3,781,724,688.75 : 5,673,352,343.70 = 1,328,252,910.51 : x - Step 2: Convert to fraction form
3,781,724,688.75/5,673,352,343.70 = 1,328,252,910.51/x - Step 3: Cross multiply
3,781,724,688.75x = 5,673,352,343.70 × 1,328,252,910.51 - Step 4: Simplify right side
3,781,724,688.75x = 7,535,646,762,868,254,720 - Step 5: Solve for x
x = 7,535,646,762,868,254,720/3,781,724,688.75 - Step 6: Final answer
x = 1,992,648,165.34
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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.