Finding the Fourth Proportional to 7,180,737.30, 9,909,370.38 and 4,083,261.18
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Solution
The fourth proportional to 7,180,737.30, 9,909,370.38 and 4,083,261.18 is: 5,634,873.65
Step by Step Solution
- Step 1: Write the proportion equation
7,180,737.30 : 9,909,370.38 = 4,083,261.18 : x - Step 2: Convert to fraction form
7,180,737.30/9,909,370.38 = 4,083,261.18/x - Step 3: Cross multiply
7,180,737.30x = 9,909,370.38 × 4,083,261.18 - Step 4: Simplify right side
7,180,737.30x = 40,462,547,390,895.85 - Step 5: Solve for x
x = 40,462,547,390,895.85/7,180,737.30 - Step 6: Final answer
x = 5,634,873.65
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1.5x scale
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.