Finding the Fourth Proportional to 26,472,752.80, 39,709,129.20 and 8,521,856.80
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Solution
The fourth proportional to 26,472,752.80, 39,709,129.20 and 8,521,856.80 is: 12,782,785.20
Step by Step Solution
- Step 1: Write the proportion equation
26,472,752.80 : 39,709,129.20 = 8,521,856.80 : x - Step 2: Convert to fraction form
26,472,752.80/39,709,129.20 = 8,521,856.80/x - Step 3: Cross multiply
26,472,752.80x = 39,709,129.20 × 8,521,856.80 - Step 4: Simplify right side
26,472,752.80x = 338,395,512,695,098.62 - Step 5: Solve for x
x = 338,395,512,695,098.62/26,472,752.80 - Step 6: Final answer
x = 12,782,785.20
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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.