Finding the Fourth Proportional to 42,497,581.20, 63,746,371.80 and 13,746,623.10
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Solution
The fourth proportional to 42,497,581.20, 63,746,371.80 and 13,746,623.10 is: 20,619,934.65
Step by Step Solution
- Step 1: Write the proportion equation
42,497,581.20 : 63,746,371.80 = 13,746,623.10 : x - Step 2: Convert to fraction form
42,497,581.20/63,746,371.80 = 13,746,623.10/x - Step 3: Cross multiply
42,497,581.20x = 63,746,371.80 × 13,746,623.10 - Step 4: Simplify right side
42,497,581.20x = 876,297,347,127,068.50 - Step 5: Solve for x
x = 876,297,347,127,068.50/42,497,581.20 - Step 6: Final answer
x = 20,619,934.65
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1.5x scale
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.