Finding the Fourth Proportional to 1,426,542,888.18, 2,140,324,041.78 and 867,442,232.15
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Solution
The fourth proportional to 1,426,542,888.18, 2,140,324,041.78 and 867,442,232.15 is: 1,301,473,288.82
Step by Step Solution
- Step 1: Write the proportion equation
1,426,542,888.18 : 2,140,324,041.78 = 867,442,232.15 : x - Step 2: Convert to fraction form
1,426,542,888.18/2,140,324,041.78 = 867,442,232.15/x - Step 3: Cross multiply
1,426,542,888.18x = 2,140,324,041.78 × 867,442,232.15 - Step 4: Simplify right side
1,426,542,888.18x = 1,856,607,464,325,953,024 - Step 5: Solve for x
x = 1,856,607,464,325,953,024/1,426,542,888.18 - Step 6: Final answer
x = 1,301,473,288.82
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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.