Finding the Fourth Proportional to 4,006,511.80, 6,009,107.50 and 1,128,078.08
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Solution
The fourth proportional to 4,006,511.80, 6,009,107.50 and 1,128,078.08 is: 1,691,931.23
Step by Step Solution
- Step 1: Write the proportion equation
4,006,511.80 : 6,009,107.50 = 1,128,078.08 : x - Step 2: Convert to fraction form
4,006,511.80/6,009,107.50 = 1,128,078.08/x - Step 3: Cross multiply
4,006,511.80x = 6,009,107.50 × 1,128,078.08 - Step 4: Simplify right side
4,006,511.80x = 6,778,742,445,473.21 - Step 5: Solve for x
x = 6,778,742,445,473.21/4,006,511.80 - Step 6: Final answer
x = 1,691,931.23
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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.