Finding the Fourth Proportional to 19,571,753.20, 29,357,629.80 and 12,296,916.40
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Solution
The fourth proportional to 19,571,753.20, 29,357,629.80 and 12,296,916.40 is: 18,445,374.60
Step by Step Solution
- Step 1: Write the proportion equation
19,571,753.20 : 29,357,629.80 = 12,296,916.40 : x - Step 2: Convert to fraction form
19,571,753.20/29,357,629.80 = 12,296,916.40/x - Step 3: Cross multiply
19,571,753.20x = 29,357,629.80 × 12,296,916.40 - Step 4: Simplify right side
19,571,753.20x = 361,008,319,352,748.75 - Step 5: Solve for x
x = 361,008,319,352,748.75/19,571,753.20 - Step 6: Final answer
x = 18,445,374.60
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1.5x scale
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.