Finding the Fourth Proportional to 19,484,428.80, 29,228,486.40 and 5,301,004.80
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Solution
The fourth proportional to 19,484,428.80, 29,228,486.40 and 5,301,004.80 is: 7,952,008.67
Step by Step Solution
- Step 1: Write the proportion equation
19,484,428.80 : 29,228,486.40 = 5,301,004.80 : x - Step 2: Convert to fraction form
19,484,428.80/29,228,486.40 = 5,301,004.80/x - Step 3: Cross multiply
19,484,428.80x = 29,228,486.40 × 5,301,004.80 - Step 4: Simplify right side
19,484,428.80x = 154,940,346,703,134.72 - Step 5: Solve for x
x = 154,940,346,703,134.72/19,484,428.80 - Step 6: Final answer
x = 7,952,008.67
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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.