Finding the Fourth Proportional to 563,506,309.99, 777,639,622.60 and 312,610,708.31
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Solution
The fourth proportional to 563,506,309.99, 777,639,622.60 and 312,610,708.31 is: 431,403,284.97
Step by Step Solution
- Step 1: Write the proportion equation
563,506,309.99 : 777,639,622.60 = 312,610,708.31 : x - Step 2: Convert to fraction form
563,506,309.99/777,639,622.60 = 312,610,708.31/x - Step 3: Cross multiply
563,506,309.99x = 777,639,622.60 × 312,610,708.31 - Step 4: Simplify right side
563,506,309.99x = 243,098,473,230,907,104 - Step 5: Solve for x
x = 243,098,473,230,907,104/563,506,309.99 - Step 6: Final answer
x = 431,403,284.97
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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.