Finding the Fourth Proportional to 13,815,537.52, 19,065,746.88 and 7,620,772.48
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Solution
The fourth proportional to 13,815,537.52, 19,065,746.88 and 7,620,772.48 is: 10,516,834.32
Step by Step Solution
- Step 1: Write the proportion equation
13,815,537.52 : 19,065,746.88 = 7,620,772.48 : x - Step 2: Convert to fraction form
13,815,537.52/19,065,746.88 = 7,620,772.48/x - Step 3: Cross multiply
13,815,537.52x = 19,065,746.88 × 7,620,772.48 - Step 4: Simplify right side
13,815,537.52x = 145,295,719,133,749.88 - Step 5: Solve for x
x = 145,295,719,133,749.88/13,815,537.52 - Step 6: Final answer
x = 10,516,834.32
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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.