Finding the Fourth Proportional to 19,422,047.40, 29,130,306.30 and 6,643,141.80
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Solution
The fourth proportional to 19,422,047.40, 29,130,306.30 and 6,643,141.80 is: 9,963,767.02
Step by Step Solution
- Step 1: Write the proportion equation
19,422,047.40 : 29,130,306.30 = 6,643,141.80 : x - Step 2: Convert to fraction form
19,422,047.40/29,130,306.30 = 6,643,141.80/x - Step 3: Cross multiply
19,422,047.40x = 29,130,306.30 × 6,643,141.80 - Step 4: Simplify right side
19,422,047.40x = 193,516,755,428,333.34 - Step 5: Solve for x
x = 193,516,755,428,333.34/19,422,047.40 - Step 6: Final answer
x = 9,963,767.02
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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.