Finding the Fourth Proportional to 9,181,215.70, 13,771,823.55 and 2,791,457.80
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Solution
The fourth proportional to 9,181,215.70, 13,771,823.55 and 2,791,457.80 is: 4,187,186.70
Step by Step Solution
- Step 1: Write the proportion equation
9,181,215.70 : 13,771,823.55 = 2,791,457.80 : x - Step 2: Convert to fraction form
9,181,215.70/13,771,823.55 = 2,791,457.80/x - Step 3: Cross multiply
9,181,215.70x = 13,771,823.55 × 2,791,457.80 - Step 4: Simplify right side
9,181,215.70x = 38,443,464,268,871.19 - Step 5: Solve for x
x = 38,443,464,268,871.19/9,181,215.70 - Step 6: Final answer
x = 4,187,186.70
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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.