Finding the Fourth Proportional to 19,811,921.70, 29,670,643.35 and 19,811,921.70
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Solution
The fourth proportional to 19,811,921.70, 29,670,643.35 and 19,811,921.70 is: 29,670,643.35
Step by Step Solution
- Step 1: Write the proportion equation
19,811,921.70 : 29,670,643.35 = 19,811,921.70 : x - Step 2: Convert to fraction form
19,811,921.70/29,670,643.35 = 19,811,921.70/x - Step 3: Cross multiply
19,811,921.70x = 29,670,643.35 × 19,811,921.70 - Step 4: Simplify right side
19,811,921.70x = 587,832,462,838,825.75 - Step 5: Solve for x
x = 587,832,462,838,825.75/19,811,921.70 - Step 6: Final answer
x = 29,670,643.35
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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.