Finding the Fourth Proportional to 548,962,431.06, 757,581,318.12 and 298,077,397.26
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Solution
The fourth proportional to 548,962,431.06, 757,581,318.12 and 298,077,397.26 is: 411,353,955.65
Step by Step Solution
- Step 1: Write the proportion equation
548,962,431.06 : 757,581,318.12 = 298,077,397.26 : x - Step 2: Convert to fraction form
548,962,431.06/757,581,318.12 = 298,077,397.26/x - Step 3: Cross multiply
548,962,431.06x = 757,581,318.12 × 298,077,397.26 - Step 4: Simplify right side
548,962,431.06x = 225,817,867,518,009,664 - Step 5: Solve for x
x = 225,817,867,518,009,664/548,962,431.06 - Step 6: Final answer
x = 411,353,955.65
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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.