Finding the Fourth Proportional to 8,938,237.20, 13,407,355.80 and 3,258,646.80
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Solution
The fourth proportional to 8,938,237.20, 13,407,355.80 and 3,258,646.80 is: 4,887,970.20
Step by Step Solution
- Step 1: Write the proportion equation
8,938,237.20 : 13,407,355.80 = 3,258,646.80 : x - Step 2: Convert to fraction form
8,938,237.20/13,407,355.80 = 3,258,646.80/x - Step 3: Cross multiply
8,938,237.20x = 13,407,355.80 × 3,258,646.80 - Step 4: Simplify right side
8,938,237.20x = 43,689,837,074,131.44 - Step 5: Solve for x
x = 43,689,837,074,131.44/8,938,237.20 - Step 6: Final answer
x = 4,887,970.20
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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.