Finding the Fourth Proportional to 563,506,308.99, 777,639,621.22 and 312,610,707.31
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Solution
The fourth proportional to 563,506,308.99, 777,639,621.22 and 312,610,707.31 is: 431,403,283.59
Step by Step Solution
- Step 1: Write the proportion equation
563,506,308.99 : 777,639,621.22 = 312,610,707.31 : x - Step 2: Convert to fraction form
563,506,308.99/777,639,621.22 = 312,610,707.31/x - Step 3: Cross multiply
563,506,308.99x = 777,639,621.22 × 312,610,707.31 - Step 4: Simplify right side
563,506,308.99x = 243,098,472,021,864,704 - Step 5: Solve for x
x = 243,098,472,021,864,704/563,506,308.99 - Step 6: Final answer
x = 431,403,283.59
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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.