Finding the Fourth Proportional to 563,163,968.70, 777,167,950.79 and 312,286,034.54
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Solution
The fourth proportional to 563,163,968.70, 777,167,950.79 and 312,286,034.54 is: 430,955,655.92
Step by Step Solution
- Step 1: Write the proportion equation
563,163,968.70 : 777,167,950.79 = 312,286,034.54 : x - Step 2: Convert to fraction form
563,163,968.70/777,167,950.79 = 312,286,034.54/x - Step 3: Cross multiply
563,163,968.70x = 777,167,950.79 × 312,286,034.54 - Step 4: Simplify right side
563,163,968.70x = 242,698,697,523,786,976 - Step 5: Solve for x
x = 242,698,697,523,786,976/563,163,968.70 - Step 6: Final answer
x = 430,955,655.92
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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.