Finding the Fourth Proportional to 513,743,324.24, 708,966,244.68 and 278,793,985.36
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Solution
The fourth proportional to 513,743,324.24, 708,966,244.68 and 278,793,985.36 is: 384,735,947.92
Step by Step Solution
- Step 1: Write the proportion equation
513,743,324.24 : 708,966,244.68 = 278,793,985.36 : x - Step 2: Convert to fraction form
513,743,324.24/708,966,244.68 = 278,793,985.36/x - Step 3: Cross multiply
513,743,324.24x = 708,966,244.68 × 278,793,985.36 - Step 4: Simplify right side
513,743,324.24x = 197,655,524,840,050,080 - Step 5: Solve for x
x = 197,655,524,840,050,080/513,743,324.24 - Step 6: Final answer
x = 384,735,947.92
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1.5x scale
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.