Finding the Fourth Proportional to 51,708,107.08, 71,356,606.57 and 28,186,128.69
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Solution
The fourth proportional to 51,708,107.08, 71,356,606.57 and 28,186,128.69 is: 38,896,540.78
Step by Step Solution
- Step 1: Write the proportion equation
51,708,107.08 : 71,356,606.57 = 28,186,128.69 : x - Step 2: Convert to fraction form
51,708,107.08/71,356,606.57 = 28,186,128.69/x - Step 3: Cross multiply
51,708,107.08x = 71,356,606.57 × 28,186,128.69 - Step 4: Simplify right side
51,708,107.08x = 2,011,266,495,663,719.50 - Step 5: Solve for x
x = 2,011,266,495,663,719.50/51,708,107.08 - Step 6: Final answer
x = 38,896,540.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.