Finding the Fourth Proportional to 12,089,569.80, 18,134,354.70 and 10,514,929.80
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Solution
The fourth proportional to 12,089,569.80, 18,134,354.70 and 10,514,929.80 is: 15,772,394.70
Step by Step Solution
- Step 1: Write the proportion equation
12,089,569.80 : 18,134,354.70 = 10,514,929.80 : x - Step 2: Convert to fraction form
12,089,569.80/18,134,354.70 = 10,514,929.80/x - Step 3: Cross multiply
12,089,569.80x = 18,134,354.70 × 10,514,929.80 - Step 4: Simplify right side
12,089,569.80x = 190,681,466,638,800.06 - Step 5: Solve for x
x = 190,681,466,638,800.06/12,089,569.80 - Step 6: Final answer
x = 15,772,394.70
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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.