Finding the Fourth Proportional to 28,639,259.48, 42,908,763.18 and 19,511,727.50
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Solution
The fourth proportional to 28,639,259.48, 42,908,763.18 and 19,511,727.50 is: 29,233,440.73
Step by Step Solution
- Step 1: Write the proportion equation
28,639,259.48 : 42,908,763.18 = 19,511,727.50 : x - Step 2: Convert to fraction form
28,639,259.48/42,908,763.18 = 19,511,727.50/x - Step 3: Cross multiply
28,639,259.48x = 42,908,763.18 × 19,511,727.50 - Step 4: Simplify right side
28,639,259.48x = 837,224,094,530,193.50 - Step 5: Solve for x
x = 837,224,094,530,193.50/28,639,259.48 - Step 6: Final answer
x = 29,233,440.73
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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.