Finding the Fourth Proportional to 821,926,574.17, 1,232,758,621.76 and 239,524,589.51
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Solution
The fourth proportional to 821,926,574.17, 1,232,758,621.76 and 239,524,589.51 is: 359,248,638.65
Step by Step Solution
- Step 1: Write the proportion equation
821,926,574.17 : 1,232,758,621.76 = 239,524,589.51 : x - Step 2: Convert to fraction form
821,926,574.17/1,232,758,621.76 = 239,524,589.51/x - Step 3: Cross multiply
821,926,574.17x = 1,232,758,621.76 × 239,524,589.51 - Step 4: Simplify right side
821,926,574.17x = 295,276,002,841,977,344 - Step 5: Solve for x
x = 295,276,002,841,977,344/821,926,574.17 - Step 6: Final answer
x = 359,248,638.65
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1.5x scale
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.