Finding the Fourth Proportional to 8,742,341.05, 12,062,925.39 and 5,605,348.06
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Solution
The fourth proportional to 8,742,341.05, 12,062,925.39 and 5,605,348.06 is: 7,734,415.19
Step by Step Solution
- Step 1: Write the proportion equation
8,742,341.05 : 12,062,925.39 = 5,605,348.06 : x - Step 2: Convert to fraction form
8,742,341.05/12,062,925.39 = 5,605,348.06/x - Step 3: Cross multiply
8,742,341.05x = 12,062,925.39 × 5,605,348.06 - Step 4: Simplify right side
8,742,341.05x = 67,616,895,432,761.24 - Step 5: Solve for x
x = 67,616,895,432,761.24/8,742,341.05 - Step 6: Final answer
x = 7,734,415.19
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1.5x scale
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.