Finding the Fourth Proportional to 19,355,106.80, 29,043,719.40 and 7,396,425.20
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Solution
The fourth proportional to 19,355,106.80, 29,043,719.40 and 7,396,425.20 is: 11,098,864.00
Step by Step Solution
- Step 1: Write the proportion equation
19,355,106.80 : 29,043,719.40 = 7,396,425.20 : x - Step 2: Convert to fraction form
19,355,106.80/29,043,719.40 = 7,396,425.20/x - Step 3: Cross multiply
19,355,106.80x = 29,043,719.40 × 7,396,425.20 - Step 4: Simplify right side
19,355,106.80x = 214,819,698,071,888.88 - Step 5: Solve for x
x = 214,819,698,071,888.88/19,355,106.80 - Step 6: Final answer
x = 11,098,864.00
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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.