Finding the Fourth Proportional to 407,143,468.99, 610,436,397.25 and 207,335,983.78
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Solution
The fourth proportional to 407,143,468.99, 610,436,397.25 and 207,335,983.78 is: 310,861,994.85
Step by Step Solution
- Step 1: Write the proportion equation
407,143,468.99 : 610,436,397.25 = 207,335,983.78 : x - Step 2: Convert to fraction form
407,143,468.99/610,436,397.25 = 207,335,983.78/x - Step 3: Cross multiply
407,143,468.99x = 610,436,397.25 × 207,335,983.78 - Step 4: Simplify right side
407,143,468.99x = 126,565,430,959,758,224 - Step 5: Solve for x
x = 126,565,430,959,758,224/407,143,468.99 - Step 6: Final answer
x = 310,861,994.85
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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.