Finding the Fourth Proportional to 5,184,966.30, 7,777,449.45 and 4,975,014.30
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Solution
The fourth proportional to 5,184,966.30, 7,777,449.45 and 4,975,014.30 is: 7,462,521.45
Step by Step Solution
- Step 1: Write the proportion equation
5,184,966.30 : 7,777,449.45 = 4,975,014.30 : x - Step 2: Convert to fraction form
5,184,966.30/7,777,449.45 = 4,975,014.30/x - Step 3: Cross multiply
5,184,966.30x = 7,777,449.45 × 4,975,014.30 - Step 4: Simplify right side
5,184,966.30x = 38,692,922,231,277.13 - Step 5: Solve for x
x = 38,692,922,231,277.13/5,184,966.30 - Step 6: Final answer
x = 7,462,521.45
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Double scale
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Similar ratio
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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.