Finding the Fourth Proportional to 409,817,216.37, 565,457,139.23 and 251,080,878.09
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Solution
The fourth proportional to 409,817,216.37, 565,457,139.23 and 251,080,878.09 is: 346,436,092.40
Step by Step Solution
- Step 1: Write the proportion equation
409,817,216.37 : 565,457,139.23 = 251,080,878.09 : x - Step 2: Convert to fraction form
409,817,216.37/565,457,139.23 = 251,080,878.09/x - Step 3: Cross multiply
409,817,216.37x = 565,457,139.23 × 251,080,878.09 - Step 4: Simplify right side
409,817,216.37x = 141,975,475,038,872,384 - Step 5: Solve for x
x = 141,975,475,038,872,384/409,817,216.37 - Step 6: Final answer
x = 346,436,092.40
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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.