Finding the Fourth Proportional to 75,130,230.40, 112,832,203.20 and 65,724,380.80
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Solution
The fourth proportional to 75,130,230.40, 112,832,203.20 and 65,724,380.80 is: 98,706,295.06
Step by Step Solution
- Step 1: Write the proportion equation
75,130,230.40 : 112,832,203.20 = 65,724,380.80 : x - Step 2: Convert to fraction form
75,130,230.40/112,832,203.20 = 65,724,380.80/x - Step 3: Cross multiply
75,130,230.40x = 112,832,203.20 × 65,724,380.80 - Step 4: Simplify right side
75,130,230.40x = 7,415,826,689,619,778 - Step 5: Solve for x
x = 7,415,826,689,619,778/75,130,230.40 - Step 6: Final answer
x = 98,706,295.06
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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.