Finding the Fourth Proportional to 26,987,037.68, 40,478,048.76 and 7,558,021.28
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Solution
The fourth proportional to 26,987,037.68, 40,478,048.76 and 7,558,021.28 is: 11,336,329.59
Step by Step Solution
- Step 1: Write the proportion equation
26,987,037.68 : 40,478,048.76 = 7,558,021.28 : x - Step 2: Convert to fraction form
26,987,037.68/40,478,048.76 = 7,558,021.28/x - Step 3: Cross multiply
26,987,037.68x = 40,478,048.76 × 7,558,021.28 - Step 4: Simplify right side
26,987,037.68x = 305,933,953,900,957.62 - Step 5: Solve for x
x = 305,933,953,900,957.62/26,987,037.68 - Step 6: Final answer
x = 11,336,329.59
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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.