Finding the Fourth Proportional to 1,317,493,869.96, 1,818,025,745.28 and 752,866,703.80
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Solution
The fourth proportional to 1,317,493,869.96, 1,818,025,745.28 and 752,866,703.80 is: 1,038,889,881.37
Step by Step Solution
- Step 1: Write the proportion equation
1,317,493,869.96 : 1,818,025,745.28 = 752,866,703.80 : x - Step 2: Convert to fraction form
1,317,493,869.96/1,818,025,745.28 = 752,866,703.80/x - Step 3: Cross multiply
1,317,493,869.96x = 1,818,025,745.28 × 752,866,703.80 - Step 4: Simplify right side
1,317,493,869.96x = 1,368,731,050,272,491,776 - Step 5: Solve for x
x = 1,368,731,050,272,491,776/1,317,493,869.96 - Step 6: Final answer
x = 1,038,889,881.37
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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.