Finding the Fourth Proportional to 7,202,823,279.13, 9,939,896,125.20 and 3,906,296,943.13
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Solution
The fourth proportional to 7,202,823,279.13, 9,939,896,125.20 and 3,906,296,943.13 is: 5,390,689,781.52
Step by Step Solution
- Step 1: Write the proportion equation
7,202,823,279.13 : 9,939,896,125.20 = 3,906,296,943.13 : x - Step 2: Convert to fraction form
7,202,823,279.13/9,939,896,125.20 = 3,906,296,943.13/x - Step 3: Cross multiply
7,202,823,279.13x = 9,939,896,125.20 × 3,906,296,943.13 - Step 4: Simplify right side
7,202,823,279.13x = 38,828,185,848,898,494,464 - Step 5: Solve for x
x = 38,828,185,848,898,494,464/7,202,823,279.13 - Step 6: Final answer
x = 5,390,689,781.52
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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.