Finding the Fourth Proportional to 357,356,769.57, 493,164,303.47 and 198,593,583.81
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Solution
The fourth proportional to 357,356,769.57, 493,164,303.47 and 198,593,583.81 is: 274,065,793.00
Step by Step Solution
- Step 1: Write the proportion equation
357,356,769.57 : 493,164,303.47 = 198,593,583.81 : x - Step 2: Convert to fraction form
357,356,769.57/493,164,303.47 = 198,593,583.81/x - Step 3: Cross multiply
357,356,769.57x = 493,164,303.47 × 198,593,583.81 - Step 4: Simplify right side
357,356,769.57x = 97,939,266,434,783,296 - Step 5: Solve for x
x = 97,939,266,434,783,296/357,356,769.57 - Step 6: Final answer
x = 274,065,793.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.