Finding the Fourth Proportional to 457,127,476.66, 630,832,448.76 and 248,285,113.99
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Solution
The fourth proportional to 457,127,476.66, 630,832,448.76 and 248,285,113.99 is: 342,631,573.12
Step by Step Solution
- Step 1: Write the proportion equation
457,127,476.66 : 630,832,448.76 = 248,285,113.99 : x - Step 2: Convert to fraction form
457,127,476.66/630,832,448.76 = 248,285,113.99/x - Step 3: Cross multiply
457,127,476.66x = 630,832,448.76 × 248,285,113.99 - Step 4: Simplify right side
457,127,476.66x = 156,626,306,446,459,296 - Step 5: Solve for x
x = 156,626,306,446,459,296/457,127,476.66 - Step 6: Final answer
x = 342,631,573.12
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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.