Finding the Fourth Proportional to 299,289,991.80, 448,934,987.70 and 290,332,039.80
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Solution
The fourth proportional to 299,289,991.80, 448,934,987.70 and 290,332,039.80 is: 435,498,059.70
Step by Step Solution
- Step 1: Write the proportion equation
299,289,991.80 : 448,934,987.70 = 290,332,039.80 : x - Step 2: Convert to fraction form
299,289,991.80/448,934,987.70 = 290,332,039.80/x - Step 3: Cross multiply
299,289,991.80x = 448,934,987.70 × 290,332,039.80 - Step 4: Simplify right side
299,289,991.80x = 130,340,210,716,528,912 - Step 5: Solve for x
x = 130,340,210,716,528,912/299,289,991.80 - Step 6: Final answer
x = 435,498,059.70
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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.