Finding the Fourth Proportional to 513,790,604.13, 709,031,033.10 and 278,841,264.60
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Solution
The fourth proportional to 513,790,604.13, 709,031,033.10 and 278,841,264.60 is: 384,800,944.82
Step by Step Solution
- Step 1: Write the proportion equation
513,790,604.13 : 709,031,033.10 = 278,841,264.60 : x - Step 2: Convert to fraction form
513,790,604.13/709,031,033.10 = 278,841,264.60/x - Step 3: Cross multiply
513,790,604.13x = 709,031,033.10 × 278,841,264.60 - Step 4: Simplify right side
513,790,604.13x = 197,707,109,910,248,480 - Step 5: Solve for x
x = 197,707,109,910,248,480/513,790,604.13 - Step 6: Final answer
x = 384,800,944.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.