Finding the Fourth Proportional to 1,646,993,453.70, 2,470,490,180.55 and 556,460,775.30
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Solution
The fourth proportional to 1,646,993,453.70, 2,470,490,180.55 and 556,460,775.30 is: 834,691,162.95
Step by Step Solution
- Step 1: Write the proportion equation
1,646,993,453.70 : 2,470,490,180.55 = 556,460,775.30 : x - Step 2: Convert to fraction form
1,646,993,453.70/2,470,490,180.55 = 556,460,775.30/x - Step 3: Cross multiply
1,646,993,453.70x = 2,470,490,180.55 × 556,460,775.30 - Step 4: Simplify right side
1,646,993,453.70x = 1,374,730,881,239,889,920 - Step 5: Solve for x
x = 1,374,730,881,239,889,920/1,646,993,453.70 - Step 6: Final answer
x = 834,691,162.95
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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.