Finding the Fourth Proportional to 7,742,235.12, 10,684,457.88 and 4,257,353
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Solution
The fourth proportional to 7,742,235.12, 10,684,457.88 and 4,257,353 is: 5,875,242.50
Step by Step Solution
- Step 1: Write the proportion equation
7,742,235.12 : 10,684,457.88 = 4,257,353 : x - Step 2: Convert to fraction form
7,742,235.12/10,684,457.88 = 4,257,353/x - Step 3: Cross multiply
7,742,235.12x = 10,684,457.88 × 4,257,353 - Step 4: Simplify right side
7,742,235.12x = 45,487,508,808,791.64 - Step 5: Solve for x
x = 45,487,508,808,791.64/7,742,235.12 - Step 6: Final answer
x = 5,875,242.50
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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.