Finding the Fourth Proportional to 554,124,536.96, 764,692,756.80 and 306,616,323.20
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Solution
The fourth proportional to 554,124,536.96, 764,692,756.80 and 306,616,323.20 is: 423,131,021.69
Step by Step Solution
- Step 1: Write the proportion equation
554,124,536.96 : 764,692,756.80 = 306,616,323.20 : x - Step 2: Convert to fraction form
554,124,536.96/764,692,756.80 = 306,616,323.20/x - Step 3: Cross multiply
554,124,536.96x = 764,692,756.80 × 306,616,323.20 - Step 4: Simplify right side
554,124,536.96x = 234,467,281,467,687,776 - Step 5: Solve for x
x = 234,467,281,467,687,776/554,124,536.96 - Step 6: Final answer
x = 423,131,021.69
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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.