Finding the Fourth Proportional to 418,462,774.74, 577,478,462.27 and 230,291,069.67
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Solution
The fourth proportional to 418,462,774.74, 577,478,462.27 and 230,291,069.67 is: 317,801,584.31
Step by Step Solution
- Step 1: Write the proportion equation
418,462,774.74 : 577,478,462.27 = 230,291,069.67 : x - Step 2: Convert to fraction form
418,462,774.74/577,478,462.27 = 230,291,069.67/x - Step 3: Cross multiply
418,462,774.74x = 577,478,462.27 × 230,291,069.67 - Step 4: Simplify right side
418,462,774.74x = 132,988,132,786,393,568 - Step 5: Solve for x
x = 132,988,132,786,393,568/418,462,774.74 - Step 6: Final answer
x = 317,801,584.31
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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.