Finding the Fourth Proportional to 449,055,494.33, 619,689,987.12 and 250,819,882.09
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Solution
The fourth proportional to 449,055,494.33, 619,689,987.12 and 250,819,882.09 is: 346,127,753.62
Step by Step Solution
- Step 1: Write the proportion equation
449,055,494.33 : 619,689,987.12 = 250,819,882.09 : x - Step 2: Convert to fraction form
449,055,494.33/619,689,987.12 = 250,819,882.09/x - Step 3: Cross multiply
449,055,494.33x = 619,689,987.12 × 250,819,882.09 - Step 4: Simplify right side
449,055,494.33x = 155,430,569,501,792,032 - Step 5: Solve for x
x = 155,430,569,501,792,032/449,055,494.33 - Step 6: Final answer
x = 346,127,753.62
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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.