Finding the Fourth Proportional to 139,655,541.60, 209,483,312.40 and 124,320,147.26
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Solution
The fourth proportional to 139,655,541.60, 209,483,312.40 and 124,320,147.26 is: 186,480,220.88
Step by Step Solution
- Step 1: Write the proportion equation
139,655,541.60 : 209,483,312.40 = 124,320,147.26 : x - Step 2: Convert to fraction form
139,655,541.60/209,483,312.40 = 124,320,147.26/x - Step 3: Cross multiply
139,655,541.60x = 209,483,312.40 × 124,320,147.26 - Step 4: Simplify right side
139,655,541.60x = 26,042,996,245,033,168 - Step 5: Solve for x
x = 26,042,996,245,033,168/139,655,541.60 - Step 6: Final answer
x = 186,480,220.88
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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.