Finding the Fourth Proportional to 1,547,439,306.66, 2,135,457,147.42 and 842,589,600.44
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Solution
The fourth proportional to 1,547,439,306.66, 2,135,457,147.42 and 842,589,600.44 is: 1,162,768,695.90
Step by Step Solution
- Step 1: Write the proportion equation
1,547,439,306.66 : 2,135,457,147.42 = 842,589,600.44 : x - Step 2: Convert to fraction form
1,547,439,306.66/2,135,457,147.42 = 842,589,600.44/x - Step 3: Cross multiply
1,547,439,306.66x = 2,135,457,147.42 × 842,589,600.44 - Step 4: Simplify right side
1,547,439,306.66x = 1,799,313,984,590,682,624 - Step 5: Solve for x
x = 1,799,313,984,590,682,624/1,547,439,306.66 - Step 6: Final answer
x = 1,162,768,695.90
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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.