Finding the Fourth Proportional to 199,135,970.20, 298,681,836.90 and 163,171,451.80
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Solution
The fourth proportional to 199,135,970.20, 298,681,836.90 and 163,171,451.80 is: 244,739,053.95
Step by Step Solution
- Step 1: Write the proportion equation
199,135,970.20 : 298,681,836.90 = 163,171,451.80 : x - Step 2: Convert to fraction form
199,135,970.20/298,681,836.90 = 163,171,451.80/x - Step 3: Cross multiply
199,135,970.20x = 298,681,836.90 × 163,171,451.80 - Step 4: Simplify right side
199,135,970.20x = 48,736,348,953,263,808 - Step 5: Solve for x
x = 48,736,348,953,263,808/199,135,970.20 - Step 6: Final answer
x = 244,739,053.95
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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.