Finding the Fourth Proportional to 26,415,023.40, 39,622,535.10 and 19,187,425.80
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Solution
The fourth proportional to 26,415,023.40, 39,622,535.10 and 19,187,425.80 is: 28,781,138.70
Step by Step Solution
- Step 1: Write the proportion equation
26,415,023.40 : 39,622,535.10 = 19,187,425.80 : x - Step 2: Convert to fraction form
26,415,023.40/39,622,535.10 = 19,187,425.80/x - Step 3: Cross multiply
26,415,023.40x = 39,622,535.10 × 19,187,425.80 - Step 4: Simplify right side
26,415,023.40x = 760,254,452,239,145.62 - Step 5: Solve for x
x = 760,254,452,239,145.62/26,415,023.40 - Step 6: Final answer
x = 28,781,138.70
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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.