Finding the Fourth Proportional to 99,878,404, 149,817,606 and 28,074,820
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Solution
The fourth proportional to 99,878,404, 149,817,606 and 28,074,820 is: 42,112,230
Step by Step Solution
- Step 1: Write the proportion equation
99,878,404 : 149,817,606 = 28,074,820 : x - Step 2: Convert to fraction form
99,878,404/149,817,606 = 28,074,820/x - Step 3: Cross multiply
99,878,404x = 149,817,606 × 28,074,820 - Step 4: Simplify right side
99,878,404x = 4,206,102,321,280,920 - Step 5: Solve for x
x = 4,206,102,321,280,920/99,878,404 - Step 6: Final answer
x = 42,112,230
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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.