Finding the Fourth Proportional to 1,147,395,122.29, 1,717,529,994.81 and 621,457,955.65
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Solution
The fourth proportional to 1,147,395,122.29, 1,717,529,994.81 and 621,457,955.65 is: 930,257,292.02
Step by Step Solution
- Step 1: Write the proportion equation
1,147,395,122.29 : 1,717,529,994.81 = 621,457,955.65 : x - Step 2: Convert to fraction form
1,147,395,122.29/1,717,529,994.81 = 621,457,955.65/x - Step 3: Cross multiply
1,147,395,122.29x = 1,717,529,994.81 × 621,457,955.65 - Step 4: Simplify right side
1,147,395,122.29x = 1,067,372,679,342,177,664 - Step 5: Solve for x
x = 1,067,372,679,342,177,664/1,147,395,122.29 - Step 6: Final answer
x = 930,257,292.02
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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.