Finding the Fourth Proportional to 463,648,827.20, 695,473,240.80 and 248,657,979.20
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Solution
The fourth proportional to 463,648,827.20, 695,473,240.80 and 248,657,979.20 is: 372,986,968.80
Step by Step Solution
- Step 1: Write the proportion equation
463,648,827.20 : 695,473,240.80 = 248,657,979.20 : x - Step 2: Convert to fraction form
463,648,827.20/695,473,240.80 = 248,657,979.20/x - Step 3: Cross multiply
463,648,827.20x = 695,473,240.80 × 248,657,979.20 - Step 4: Simplify right side
463,648,827.20x = 172,934,970,645,002,976 - Step 5: Solve for x
x = 172,934,970,645,002,976/463,648,827.20 - Step 6: Final answer
x = 372,986,968.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.