Finding the Fourth Proportional to 1,243,581,161.85, 1,866,017,328.84 and 507,191,318.01
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Solution
The fourth proportional to 1,243,581,161.85, 1,866,017,328.84 and 507,191,318.01 is: 761,050,277.60
Step by Step Solution
- Step 1: Write the proportion equation
1,243,581,161.85 : 1,866,017,328.84 = 507,191,318.01 : x - Step 2: Convert to fraction form
1,243,581,161.85/1,866,017,328.84 = 507,191,318.01/x - Step 3: Cross multiply
1,243,581,161.85x = 1,866,017,328.84 × 507,191,318.01 - Step 4: Simplify right side
1,243,581,161.85x = 946,427,788,443,859,072 - Step 5: Solve for x
x = 946,427,788,443,859,072/1,243,581,161.85 - Step 6: Final answer
x = 761,050,277.60
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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.