Finding the Fourth Proportional to 13,887,541.81, 19,165,116.35 and 7,926,828.20
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Solution
The fourth proportional to 13,887,541.81, 19,165,116.35 and 7,926,828.20 is: 10,939,199.09
Step by Step Solution
- Step 1: Write the proportion equation
13,887,541.81 : 19,165,116.35 = 7,926,828.20 : x - Step 2: Convert to fraction form
13,887,541.81/19,165,116.35 = 7,926,828.20/x - Step 3: Cross multiply
13,887,541.81x = 19,165,116.35 × 7,926,828.20 - Step 4: Simplify right side
13,887,541.81x = 151,918,584,766,927.38 - Step 5: Solve for x
x = 151,918,584,766,927.38/13,887,541.81 - Step 6: Final answer
x = 10,939,199.09
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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.