Finding the Fourth Proportional to 10,255,775.10, 14,157,327.45 and 6,390,206.16
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Solution
The fourth proportional to 10,255,775.10, 14,157,327.45 and 6,390,206.16 is: 8,821,199.78
Step by Step Solution
- Step 1: Write the proportion equation
10,255,775.10 : 14,157,327.45 = 6,390,206.16 : x - Step 2: Convert to fraction form
10,255,775.10/14,157,327.45 = 6,390,206.16/x - Step 3: Cross multiply
10,255,775.10x = 14,157,327.45 × 6,390,206.16 - Step 4: Simplify right side
10,255,775.10x = 90,468,241,080,127.09 - Step 5: Solve for x
x = 90,468,241,080,127.09/10,255,775.10 - Step 6: Final answer
x = 8,821,199.78
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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.