Finding the Fourth Proportional to 12,128,195.44, 16,736,823.05 and 6,621,570.12
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Solution
The fourth proportional to 12,128,195.44, 16,736,823.05 and 6,621,570.12 is: 9,137,719.45
Step by Step Solution
- Step 1: Write the proportion equation
12,128,195.44 : 16,736,823.05 = 6,621,570.12 : x - Step 2: Convert to fraction form
12,128,195.44/16,736,823.05 = 6,621,570.12/x - Step 3: Cross multiply
12,128,195.44x = 16,736,823.05 × 6,621,570.12 - Step 4: Simplify right side
12,128,195.44x = 110,824,047,411,607.27 - Step 5: Solve for x
x = 110,824,047,411,607.27/12,128,195.44 - Step 6: Final answer
x = 9,137,719.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.