Finding the Fourth Proportional to 4,197,376,156.80, 6,296,064,235.20 and 1,289,475,638.40
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Solution
The fourth proportional to 4,197,376,156.80, 6,296,064,235.20 and 1,289,475,638.40 is: 1,934,213,457.60
Step by Step Solution
- Step 1: Write the proportion equation
4,197,376,156.80 : 6,296,064,235.20 = 1,289,475,638.40 : x - Step 2: Convert to fraction form
4,197,376,156.80/6,296,064,235.20 = 1,289,475,638.40/x - Step 3: Cross multiply
4,197,376,156.80x = 6,296,064,235.20 × 1,289,475,638.40 - Step 4: Simplify right side
4,197,376,156.80x = 8,118,621,449,091,928,064 - Step 5: Solve for x
x = 8,118,621,449,091,928,064/4,197,376,156.80 - Step 6: Final answer
x = 1,934,213,457.60
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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.