Finding the Fourth Proportional to 28,516,974.05, 39,353,434.67 and 15,464,229.59
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Solution
The fourth proportional to 28,516,974.05, 39,353,434.67 and 15,464,229.59 is: 21,340,642.52
Step by Step Solution
- Step 1: Write the proportion equation
28,516,974.05 : 39,353,434.67 = 15,464,229.59 : x - Step 2: Convert to fraction form
28,516,974.05/39,353,434.67 = 15,464,229.59/x - Step 3: Cross multiply
28,516,974.05x = 39,353,434.67 × 15,464,229.59 - Step 4: Simplify right side
28,516,974.05x = 608,570,548,814,624.75 - Step 5: Solve for x
x = 608,570,548,814,624.75/28,516,974.05 - Step 6: Final answer
x = 21,340,642.52
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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.