Finding the Fourth Proportional to 630,177,892.70, 869,721,750.11 and 358,664,379.44
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Solution
The fourth proportional to 630,177,892.70, 869,721,750.11 and 358,664,379.44 is: 495,000,245.81
Step by Step Solution
- Step 1: Write the proportion equation
630,177,892.70 : 869,721,750.11 = 358,664,379.44 : x - Step 2: Convert to fraction form
630,177,892.70/869,721,750.11 = 358,664,379.44/x - Step 3: Cross multiply
630,177,892.70x = 869,721,750.11 × 358,664,379.44 - Step 4: Simplify right side
630,177,892.70x = 311,938,211,786,880,576 - Step 5: Solve for x
x = 311,938,211,786,880,576/630,177,892.70 - Step 6: Final answer
x = 495,000,245.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.