Finding the Fourth Proportional to 579,416,577.30, 869,124,865.95 and 307,318,785.30
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Solution
The fourth proportional to 579,416,577.30, 869,124,865.95 and 307,318,785.30 is: 460,978,177.95
Step by Step Solution
- Step 1: Write the proportion equation
579,416,577.30 : 869,124,865.95 = 307,318,785.30 : x - Step 2: Convert to fraction form
579,416,577.30/869,124,865.95 = 307,318,785.30/x - Step 3: Cross multiply
579,416,577.30x = 869,124,865.95 × 307,318,785.30 - Step 4: Simplify right side
579,416,577.30x = 267,098,398,077,779,360 - Step 5: Solve for x
x = 267,098,398,077,779,360/579,416,577.30 - Step 6: Final answer
x = 460,978,177.95
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Similar ratio
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1.5x scale
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.