Finding the Fourth Proportional to 10,402,303.70, 15,603,455.55 and 7,211,033.30
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Solution
The fourth proportional to 10,402,303.70, 15,603,455.55 and 7,211,033.30 is: 10,816,549.95
Step by Step Solution
- Step 1: Write the proportion equation
10,402,303.70 : 15,603,455.55 = 7,211,033.30 : x - Step 2: Convert to fraction form
10,402,303.70/15,603,455.55 = 7,211,033.30/x - Step 3: Cross multiply
10,402,303.70x = 15,603,455.55 × 7,211,033.30 - Step 4: Simplify right side
10,402,303.70x = 112,517,037,566,119.81 - Step 5: Solve for x
x = 112,517,037,566,119.81/10,402,303.70 - Step 6: Final answer
x = 10,816,549.95
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1.5x scale
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.