Finding the Fourth Proportional to 653,246,647.80, 979,869,971.70 and 603,362,052.60
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Solution
The fourth proportional to 653,246,647.80, 979,869,971.70 and 603,362,052.60 is: 905,043,078.90
Step by Step Solution
- Step 1: Write the proportion equation
653,246,647.80 : 979,869,971.70 = 603,362,052.60 : x - Step 2: Convert to fraction form
653,246,647.80/979,869,971.70 = 603,362,052.60/x - Step 3: Cross multiply
653,246,647.80x = 979,869,971.70 × 603,362,052.60 - Step 4: Simplify right side
653,246,647.80x = 591,216,357,406,016,000 - Step 5: Solve for x
x = 591,216,357,406,016,000/653,246,647.80 - Step 6: Final answer
x = 905,043,078.90
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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.