Finding the Fourth Proportional to 19,422,946.80, 29,134,420.20 and 13,036,258.80
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Solution
The fourth proportional to 19,422,946.80, 29,134,420.20 and 13,036,258.80 is: 19,554,388.20
Step by Step Solution
- Step 1: Write the proportion equation
19,422,946.80 : 29,134,420.20 = 13,036,258.80 : x - Step 2: Convert to fraction form
19,422,946.80/29,134,420.20 = 13,036,258.80/x - Step 3: Cross multiply
19,422,946.80x = 29,134,420.20 × 13,036,258.80 - Step 4: Simplify right side
19,422,946.80x = 379,803,841,715,147.75 - Step 5: Solve for x
x = 379,803,841,715,147.75/19,422,946.80 - Step 6: Final answer
x = 19,554,388.20
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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.