Finding the Fourth Proportional to 1,912,347,671.65, 2,869,355,869.58 and 669,670,045.09
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Solution
The fourth proportional to 1,912,347,671.65, 2,869,355,869.58 and 669,670,045.09 is: 1,004,797,246.36
Step by Step Solution
- Step 1: Write the proportion equation
1,912,347,671.65 : 2,869,355,869.58 = 669,670,045.09 : x - Step 2: Convert to fraction form
1,912,347,671.65/2,869,355,869.58 = 669,670,045.09/x - Step 3: Cross multiply
1,912,347,671.65x = 2,869,355,869.58 × 669,670,045.09 - Step 4: Simplify right side
1,912,347,671.65x = 1,921,521,674,560,894,720 - Step 5: Solve for x
x = 1,921,521,674,560,894,720/1,912,347,671.65 - Step 6: Final answer
x = 1,004,797,246.36
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.