Finding the Fourth Proportional to 261,669,423.84, 392,266,568.52 and 130,551,802.09
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Solution
The fourth proportional to 261,669,423.84, 392,266,568.52 and 130,551,802.09 is: 195,709,176.37
Step by Step Solution
- Step 1: Write the proportion equation
261,669,423.84 : 392,266,568.52 = 130,551,802.09 : x - Step 2: Convert to fraction form
261,669,423.84/392,266,568.52 = 130,551,802.09/x - Step 3: Cross multiply
261,669,423.84x = 392,266,568.52 × 130,551,802.09 - Step 4: Simplify right side
261,669,423.84x = 51,211,107,420,807,408 - Step 5: Solve for x
x = 51,211,107,420,807,408/261,669,423.84 - Step 6: Final answer
x = 195,709,176.37
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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.