Finding the Fourth Proportional to 42,278,182.80, 58,340,328.84 and 23,440,267.44
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Solution
The fourth proportional to 42,278,182.80, 58,340,328.84 and 23,440,267.44 is: 32,345,593.40
Step by Step Solution
- Step 1: Write the proportion equation
42,278,182.80 : 58,340,328.84 = 23,440,267.44 : x - Step 2: Convert to fraction form
42,278,182.80/58,340,328.84 = 23,440,267.44/x - Step 3: Cross multiply
42,278,182.80x = 58,340,328.84 × 23,440,267.44 - Step 4: Simplify right side
42,278,182.80x = 1,367,512,910,547,145.25 - Step 5: Solve for x
x = 1,367,512,910,547,145.25/42,278,182.80 - Step 6: Final answer
x = 32,345,593.40
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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.