Finding the Fourth Proportional to 302,292,138.40, 453,438,207.60 and 149,237,130.40
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Solution
The fourth proportional to 302,292,138.40, 453,438,207.60 and 149,237,130.40 is: 223,855,695.60
Step by Step Solution
- Step 1: Write the proportion equation
302,292,138.40 : 453,438,207.60 = 149,237,130.40 : x - Step 2: Convert to fraction form
302,292,138.40/453,438,207.60 = 149,237,130.40/x - Step 3: Cross multiply
302,292,138.40x = 453,438,207.60 × 149,237,130.40 - Step 4: Simplify right side
302,292,138.40x = 67,669,816,915,943,480 - Step 5: Solve for x
x = 67,669,816,915,943,480/302,292,138.40 - Step 6: Final answer
x = 223,855,695.60
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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.