Finding the Fourth Proportional to 6,645,339.70, 9,968,009.55 and 5,582,457.70
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Solution
The fourth proportional to 6,645,339.70, 9,968,009.55 and 5,582,457.70 is: 8,373,686.55
Step by Step Solution
- Step 1: Write the proportion equation
6,645,339.70 : 9,968,009.55 = 5,582,457.70 : x - Step 2: Convert to fraction form
6,645,339.70/9,968,009.55 = 5,582,457.70/x - Step 3: Cross multiply
6,645,339.70x = 9,968,009.55 × 5,582,457.70 - Step 4: Simplify right side
6,645,339.70x = 55,645,991,666,071.04 - Step 5: Solve for x
x = 55,645,991,666,071.04/6,645,339.70 - Step 6: Final answer
x = 8,373,686.55
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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.