Finding the Fourth Proportional to 384,912,322.20, 577,368,483.30 and 126,065,125.80
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Solution
The fourth proportional to 384,912,322.20, 577,368,483.30 and 126,065,125.80 is: 189,097,688.70
Step by Step Solution
- Step 1: Write the proportion equation
384,912,322.20 : 577,368,483.30 = 126,065,125.80 : x - Step 2: Convert to fraction form
384,912,322.20/577,368,483.30 = 126,065,125.80/x - Step 3: Cross multiply
384,912,322.20x = 577,368,483.30 × 126,065,125.80 - Step 4: Simplify right side
384,912,322.20x = 72,786,030,480,169,696 - Step 5: Solve for x
x = 72,786,030,480,169,696/384,912,322.20 - Step 6: Final answer
x = 189,097,688.70
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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.