Finding the Fourth Proportional to 10,255,769.47, 14,157,319.68 and 6,390,200.49
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Solution
The fourth proportional to 10,255,769.47, 14,157,319.68 and 6,390,200.49 is: 8,821,191.96
Step by Step Solution
- Step 1: Write the proportion equation
10,255,769.47 : 14,157,319.68 = 6,390,200.49 : x - Step 2: Convert to fraction form
10,255,769.47/14,157,319.68 = 6,390,200.49/x - Step 3: Cross multiply
10,255,769.47x = 14,157,319.68 × 6,390,200.49 - Step 4: Simplify right side
10,255,769.47x = 90,468,111,120,829.34 - Step 5: Solve for x
x = 90,468,111,120,829.34/10,255,769.47 - Step 6: Final answer
x = 8,821,191.96
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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.