Finding the Fourth Proportional to 3,959,564,555.70, 5,939,346,833.55 and 2,122,904,459.70
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Solution
The fourth proportional to 3,959,564,555.70, 5,939,346,833.55 and 2,122,904,459.70 is: 3,184,356,689.55
Step by Step Solution
- Step 1: Write the proportion equation
3,959,564,555.70 : 5,939,346,833.55 = 2,122,904,459.70 : x - Step 2: Convert to fraction form
3,959,564,555.70/5,939,346,833.55 = 2,122,904,459.70/x - Step 3: Cross multiply
3,959,564,555.70x = 5,939,346,833.55 × 2,122,904,459.70 - Step 4: Simplify right side
3,959,564,555.70x = 12,608,665,880,648,370,176 - Step 5: Solve for x
x = 12,608,665,880,648,370,176/3,959,564,555.70 - Step 6: Final answer
x = 3,184,356,689.55
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1.5x scale
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.