Finding the Fourth Proportional to 651,451,633.60, 977,177,450.40 and 580,025,963.20
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Solution
The fourth proportional to 651,451,633.60, 977,177,450.40 and 580,025,963.20 is: 870,038,944.80
Step by Step Solution
- Step 1: Write the proportion equation
651,451,633.60 : 977,177,450.40 = 580,025,963.20 : x - Step 2: Convert to fraction form
651,451,633.60/977,177,450.40 = 580,025,963.20/x - Step 3: Cross multiply
651,451,633.60x = 977,177,450.40 × 580,025,963.20 - Step 4: Simplify right side
651,451,633.60x = 566,788,291,885,580,288 - Step 5: Solve for x
x = 566,788,291,885,580,288/651,451,633.60 - Step 6: Final answer
x = 870,038,944.80
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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.