Finding the Fourth Proportional to 298,872,830.70, 448,309,246.05 and 145,817,822.70
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Solution
The fourth proportional to 298,872,830.70, 448,309,246.05 and 145,817,822.70 is: 218,726,734.05
Step by Step Solution
- Step 1: Write the proportion equation
298,872,830.70 : 448,309,246.05 = 145,817,822.70 : x - Step 2: Convert to fraction form
298,872,830.70/448,309,246.05 = 145,817,822.70/x - Step 3: Cross multiply
298,872,830.70x = 448,309,246.05 × 145,817,822.70 - Step 4: Simplify right side
298,872,830.70x = 65,371,478,155,289,568 - Step 5: Solve for x
x = 65,371,478,155,289,568/298,872,830.70 - Step 6: Final answer
x = 218,726,734.05
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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.