Finding the Fourth Proportional to 408,490,065.20, 612,363,089.10 and 149,642,868.80
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Solution
The fourth proportional to 408,490,065.20, 612,363,089.10 and 149,642,868.80 is: 224,328,024.61
Step by Step Solution
- Step 1: Write the proportion equation
408,490,065.20 : 612,363,089.10 = 149,642,868.80 : x - Step 2: Convert to fraction form
408,490,065.20/612,363,089.10 = 149,642,868.80/x - Step 3: Cross multiply
408,490,065.20x = 612,363,089.10 × 149,642,868.80 - Step 4: Simplify right side
408,490,065.20x = 91,635,769,400,154,016 - Step 5: Solve for x
x = 91,635,769,400,154,016/408,490,065.20 - Step 6: Final answer
x = 224,328,024.61
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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.