Finding the Fourth Proportional to 26,448,045.30, 39,672,067.95 and 18,721,811.70
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Solution
The fourth proportional to 26,448,045.30, 39,672,067.95 and 18,721,811.70 is: 28,082,717.55
Step by Step Solution
- Step 1: Write the proportion equation
26,448,045.30 : 39,672,067.95 = 18,721,811.70 : x - Step 2: Convert to fraction form
26,448,045.30/39,672,067.95 = 18,721,811.70/x - Step 3: Cross multiply
26,448,045.30x = 39,672,067.95 × 18,721,811.70 - Step 4: Simplify right side
26,448,045.30x = 742,732,985,909,505 - Step 5: Solve for x
x = 742,732,985,909,505/26,448,045.30 - Step 6: Final answer
x = 28,082,717.55
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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.