Finding the Fourth Proportional to 10,409,627.20, 15,614,440.80 and 9,779,252.80
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Solution
The fourth proportional to 10,409,627.20, 15,614,440.80 and 9,779,252.80 is: 14,668,879.20
Step by Step Solution
- Step 1: Write the proportion equation
10,409,627.20 : 15,614,440.80 = 9,779,252.80 : x - Step 2: Convert to fraction form
10,409,627.20/15,614,440.80 = 9,779,252.80/x - Step 3: Cross multiply
10,409,627.20x = 15,614,440.80 × 9,779,252.80 - Step 4: Simplify right side
10,409,627.20x = 152,697,563,913,834.25 - Step 5: Solve for x
x = 152,697,563,913,834.25/10,409,627.20 - Step 6: Final answer
x = 14,668,879.20
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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.