Finding the Fourth Proportional to 19,938,258.28, 29,912,703.84 and 7,158,873.72
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Solution
The fourth proportional to 19,938,258.28, 29,912,703.84 and 7,158,873.72 is: 10,740,219.45
Step by Step Solution
- Step 1: Write the proportion equation
19,938,258.28 : 29,912,703.84 = 7,158,873.72 : x - Step 2: Convert to fraction form
19,938,258.28/29,912,703.84 = 7,158,873.72/x - Step 3: Cross multiply
19,938,258.28x = 29,912,703.84 × 7,158,873.72 - Step 4: Simplify right side
19,938,258.28x = 214,141,269,414,319.06 - Step 5: Solve for x
x = 214,141,269,414,319.06/19,938,258.28 - Step 6: Final answer
x = 10,740,219.45
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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.