Finding the Fourth Proportional to 453,643,907.70, 680,465,861.55 and 130,527,779.70
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Solution
The fourth proportional to 453,643,907.70, 680,465,861.55 and 130,527,779.70 is: 195,791,669.55
Step by Step Solution
- Step 1: Write the proportion equation
453,643,907.70 : 680,465,861.55 = 130,527,779.70 : x - Step 2: Convert to fraction form
453,643,907.70/680,465,861.55 = 130,527,779.70/x - Step 3: Cross multiply
453,643,907.70x = 680,465,861.55 × 130,527,779.70 - Step 4: Simplify right side
453,643,907.70x = 88,819,698,069,769,104 - Step 5: Solve for x
x = 88,819,698,069,769,104/453,643,907.70 - Step 6: Final answer
x = 195,791,669.55
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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.