Finding the Fourth Proportional to 312,938,597.08, 469,216,576.80 and 149,226,425.56
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Solution
The fourth proportional to 312,938,597.08, 469,216,576.80 and 149,226,425.56 is: 223,748,406.95
Step by Step Solution
- Step 1: Write the proportion equation
312,938,597.08 : 469,216,576.80 = 149,226,425.56 : x - Step 2: Convert to fraction form
312,938,597.08/469,216,576.80 = 149,226,425.56/x - Step 3: Cross multiply
312,938,597.08x = 469,216,576.80 × 149,226,425.56 - Step 4: Simplify right side
312,938,597.08x = 70,019,512,569,363,224 - Step 5: Solve for x
x = 70,019,512,569,363,224/312,938,597.08 - Step 6: Final answer
x = 223,748,406.95
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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.