Finding the Fourth Proportional to 434,447,207.20, 651,670,810.80 and 147,232,871.20
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Solution
The fourth proportional to 434,447,207.20, 651,670,810.80 and 147,232,871.20 is: 220,849,306.80
Step by Step Solution
- Step 1: Write the proportion equation
434,447,207.20 : 651,670,810.80 = 147,232,871.20 : x - Step 2: Convert to fraction form
434,447,207.20/651,670,810.80 = 147,232,871.20/x - Step 3: Cross multiply
434,447,207.20x = 651,670,810.80 × 147,232,871.20 - Step 4: Simplify right side
434,447,207.20x = 95,947,364,551,315,952 - Step 5: Solve for x
x = 95,947,364,551,315,952/434,447,207.20 - Step 6: Final answer
x = 220,849,306.80
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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.