Finding the Fourth Proportional to 10,658,823.60, 15,988,235.40 and 9,777,025.20
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Solution
The fourth proportional to 10,658,823.60, 15,988,235.40 and 9,777,025.20 is: 14,665,537.80
Step by Step Solution
- Step 1: Write the proportion equation
10,658,823.60 : 15,988,235.40 = 9,777,025.20 : x - Step 2: Convert to fraction form
10,658,823.60/15,988,235.40 = 9,777,025.20/x - Step 3: Cross multiply
10,658,823.60x = 15,988,235.40 × 9,777,025.20 - Step 4: Simplify right side
10,658,823.60x = 156,317,380,409,332.06 - Step 5: Solve for x
x = 156,317,380,409,332.06/10,658,823.60 - Step 6: Final answer
x = 14,665,537.80
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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.