Finding the Fourth Proportional to 315,708,465.70, 435,680,501.70 and 174,589,235.06
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Solution
The fourth proportional to 315,708,465.70, 435,680,501.70 and 174,589,235.06 is: 240,934,703.32
Step by Step Solution
- Step 1: Write the proportion equation
315,708,465.70 : 435,680,501.70 = 174,589,235.06 : x - Step 2: Convert to fraction form
315,708,465.70/435,680,501.70 = 174,589,235.06/x - Step 3: Cross multiply
315,708,465.70x = 435,680,501.70 × 174,589,235.06 - Step 4: Simplify right side
315,708,465.70x = 76,065,125,520,345,744 - Step 5: Solve for x
x = 76,065,125,520,345,744/315,708,465.70 - Step 6: Final answer
x = 240,934,703.32
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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.