Finding the Fourth Proportional to 272,967,610.10, 409,451,415.15 and 169,655,479.70
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Solution
The fourth proportional to 272,967,610.10, 409,451,415.15 and 169,655,479.70 is: 254,483,219.55
Step by Step Solution
- Step 1: Write the proportion equation
272,967,610.10 : 409,451,415.15 = 169,655,479.70 : x - Step 2: Convert to fraction form
272,967,610.10/409,451,415.15 = 169,655,479.70/x - Step 3: Cross multiply
272,967,610.10x = 409,451,415.15 × 169,655,479.70 - Step 4: Simplify right side
272,967,610.10x = 69,465,676,251,117,088 - Step 5: Solve for x
x = 69,465,676,251,117,088/272,967,610.10 - Step 6: Final answer
x = 254,483,219.55
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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.