Finding the Fourth Proportional to 99,678,851.10, 149,518,276.65 and 70,768,460.70
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Solution
The fourth proportional to 99,678,851.10, 149,518,276.65 and 70,768,460.70 is: 106,152,691.05
Step by Step Solution
- Step 1: Write the proportion equation
99,678,851.10 : 149,518,276.65 = 70,768,460.70 : x - Step 2: Convert to fraction form
99,678,851.10/149,518,276.65 = 70,768,460.70/x - Step 3: Cross multiply
99,678,851.10x = 149,518,276.65 × 70,768,460.70 - Step 4: Simplify right side
99,678,851.10x = 10,581,178,285,037,254 - Step 5: Solve for x
x = 10,581,178,285,037,254/99,678,851.10 - Step 6: Final answer
x = 106,152,691.05
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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.