Finding the Fourth Proportional to 43,471,921.20, 65,207,881.80 and 26,465,809.20
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Solution
The fourth proportional to 43,471,921.20, 65,207,881.80 and 26,465,809.20 is: 39,698,713.80
Step by Step Solution
- Step 1: Write the proportion equation
43,471,921.20 : 65,207,881.80 = 26,465,809.20 : x - Step 2: Convert to fraction form
43,471,921.20/65,207,881.80 = 26,465,809.20/x - Step 3: Cross multiply
43,471,921.20x = 65,207,881.80 × 26,465,809.20 - Step 4: Simplify right side
43,471,921.20x = 1,725,779,358,054,952.50 - Step 5: Solve for x
x = 1,725,779,358,054,952.50/43,471,921.20 - Step 6: Final answer
x = 39,698,713.80
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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.