Finding the Fourth Proportional to 79,943,916.60, 119,971,862.10 and 51,259,807.80
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Solution
The fourth proportional to 79,943,916.60, 119,971,862.10 and 51,259,807.80 is: 76,925,610.53
Step by Step Solution
- Step 1: Write the proportion equation
79,943,916.60 : 119,971,862.10 = 51,259,807.80 : x - Step 2: Convert to fraction form
79,943,916.60/119,971,862.10 = 51,259,807.80/x - Step 3: Cross multiply
79,943,916.60x = 119,971,862.10 × 51,259,807.80 - Step 4: Simplify right side
79,943,916.60x = 6,149,734,592,654,104 - Step 5: Solve for x
x = 6,149,734,592,654,104/79,943,916.60 - Step 6: Final answer
x = 76,925,610.53
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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.