Finding the Fourth Proportional to 1,250,384,138.08, 1,875,861,897.36 and 432,495,748.96
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Solution
The fourth proportional to 1,250,384,138.08, 1,875,861,897.36 and 432,495,748.96 is: 648,842,440.92
Step by Step Solution
- Step 1: Write the proportion equation
1,250,384,138.08 : 1,875,861,897.36 = 432,495,748.96 : x - Step 2: Convert to fraction form
1,250,384,138.08/1,875,861,897.36 = 432,495,748.96/x - Step 3: Cross multiply
1,250,384,138.08x = 1,875,861,897.36 × 432,495,748.96 - Step 4: Simplify right side
1,250,384,138.08x = 811,302,296,244,239,744 - Step 5: Solve for x
x = 811,302,296,244,239,744/1,250,384,138.08 - Step 6: Final answer
x = 648,842,440.92
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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.