Finding the Fourth Proportional to 513,923,027.68, 709,214,684.72 and 278,973,850.88
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Solution
The fourth proportional to 513,923,027.68, 709,214,684.72 and 278,973,850.88 is: 384,984,406.30
Step by Step Solution
- Step 1: Write the proportion equation
513,923,027.68 : 709,214,684.72 = 278,973,850.88 : x - Step 2: Convert to fraction form
513,923,027.68/709,214,684.72 = 278,973,850.88/x - Step 3: Cross multiply
513,923,027.68x = 709,214,684.72 × 278,973,850.88 - Step 4: Simplify right side
513,923,027.68x = 197,852,351,696,983,488 - Step 5: Solve for x
x = 197,852,351,696,983,488/513,923,027.68 - Step 6: Final answer
x = 384,984,406.30
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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.