Finding the Fourth Proportional to 98,331,246.40, 147,370,898.40 and 87,497,723.20
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Solution
The fourth proportional to 98,331,246.40, 147,370,898.40 and 87,497,723.20 is: 131,134,492.32
Step by Step Solution
- Step 1: Write the proportion equation
98,331,246.40 : 147,370,898.40 = 87,497,723.20 : x - Step 2: Convert to fraction form
98,331,246.40/147,370,898.40 = 87,497,723.20/x - Step 3: Cross multiply
98,331,246.40x = 147,370,898.40 × 87,497,723.20 - Step 4: Simplify right side
98,331,246.40x = 12,894,618,075,938,524 - Step 5: Solve for x
x = 12,894,618,075,938,524/98,331,246.40 - Step 6: Final answer
x = 131,134,492.32
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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.