Finding the Fourth Proportional to 39,009,306.60, 53,869,029.21 and 29,202,725.70
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Solution
The fourth proportional to 39,009,306.60, 53,869,029.21 and 29,202,725.70 is: 40,326,850.71
Step by Step Solution
- Step 1: Write the proportion equation
39,009,306.60 : 53,869,029.21 = 29,202,725.70 : x - Step 2: Convert to fraction form
39,009,306.60/53,869,029.21 = 29,202,725.70/x - Step 3: Cross multiply
39,009,306.60x = 53,869,029.21 × 29,202,725.70 - Step 4: Simplify right side
39,009,306.60x = 1,573,122,483,744,917.75 - Step 5: Solve for x
x = 1,573,122,483,744,917.75/39,009,306.60 - Step 6: Final answer
x = 40,326,850.71
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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.