Finding the Fourth Proportional to 725,121,664.62, 1,000,668,041.19 and 395,096,803.62
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Solution
The fourth proportional to 725,121,664.62, 1,000,668,041.19 and 395,096,803.62 is: 545,233,667.46
Step by Step Solution
- Step 1: Write the proportion equation
725,121,664.62 : 1,000,668,041.19 = 395,096,803.62 : x - Step 2: Convert to fraction form
725,121,664.62/1,000,668,041.19 = 395,096,803.62/x - Step 3: Cross multiply
725,121,664.62x = 1,000,668,041.19 × 395,096,803.62 - Step 4: Simplify right side
725,121,664.62x = 395,360,744,559,855,808 - Step 5: Solve for x
x = 395,360,744,559,855,808/725,121,664.62 - Step 6: Final answer
x = 545,233,667.46
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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.