Finding the Fourth Proportional to 19,720,233.30, 29,580,349.95 and 11,217,177.30
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Solution
The fourth proportional to 19,720,233.30, 29,580,349.95 and 11,217,177.30 is: 16,825,765.95
Step by Step Solution
- Step 1: Write the proportion equation
19,720,233.30 : 29,580,349.95 = 11,217,177.30 : x - Step 2: Convert to fraction form
19,720,233.30/29,580,349.95 = 11,217,177.30/x - Step 3: Cross multiply
19,720,233.30x = 29,580,349.95 × 11,217,177.30 - Step 4: Simplify right side
19,720,233.30x = 331,808,029,985,196.12 - Step 5: Solve for x
x = 331,808,029,985,196.12/19,720,233.30 - Step 6: Final answer
x = 16,825,765.95
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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.