Finding the Fourth Proportional to 2,457,209,424.80, 3,685,814,137.20 and 905,614,281.20
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Solution
The fourth proportional to 2,457,209,424.80, 3,685,814,137.20 and 905,614,281.20 is: 1,358,421,421.80
Step by Step Solution
- Step 1: Write the proportion equation
2,457,209,424.80 : 3,685,814,137.20 = 905,614,281.20 : x - Step 2: Convert to fraction form
2,457,209,424.80/3,685,814,137.20 = 905,614,281.20/x - Step 3: Cross multiply
2,457,209,424.80x = 3,685,814,137.20 × 905,614,281.20 - Step 4: Simplify right side
2,457,209,424.80x = 3,337,925,920,497,176,064 - Step 5: Solve for x
x = 3,337,925,920,497,176,064/2,457,209,424.80 - Step 6: Final answer
x = 1,358,421,421.80
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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.