Finding the Fourth Proportional to 623,975,402.60, 935,963,103.90 and 442,576,874.60
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Solution
The fourth proportional to 623,975,402.60, 935,963,103.90 and 442,576,874.60 is: 663,865,311.90
Step by Step Solution
- Step 1: Write the proportion equation
623,975,402.60 : 935,963,103.90 = 442,576,874.60 : x - Step 2: Convert to fraction form
623,975,402.60/935,963,103.90 = 442,576,874.60/x - Step 3: Cross multiply
623,975,402.60x = 935,963,103.90 × 442,576,874.60 - Step 4: Simplify right side
623,975,402.60x = 414,235,625,264,977,088 - Step 5: Solve for x
x = 414,235,625,264,977,088/623,975,402.60 - Step 6: Final answer
x = 663,865,311.90
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Half scale
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Double scale
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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.