Finding the Fourth Proportional to 457,201,248.48, 630,955,066.74 and 256,261,836.75
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Solution
The fourth proportional to 457,201,248.48, 630,955,066.74 and 256,261,836.75 is: 353,651,055.95
Step by Step Solution
- Step 1: Write the proportion equation
457,201,248.48 : 630,955,066.74 = 256,261,836.75 : x - Step 2: Convert to fraction form
457,201,248.48/630,955,066.74 = 256,261,836.75/x - Step 3: Cross multiply
457,201,248.48x = 630,955,066.74 × 256,261,836.75 - Step 4: Simplify right side
457,201,248.48x = 161,689,704,308,550,272 - Step 5: Solve for x
x = 161,689,704,308,550,272/457,201,248.48 - Step 6: Final answer
x = 353,651,055.95
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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.