Finding the Fourth Proportional to 394,864,138.14, 544,905,810.72 and 218,648,350.08
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Solution
The fourth proportional to 394,864,138.14, 544,905,810.72 and 218,648,350.08 is: 301,731,013.16
Step by Step Solution
- Step 1: Write the proportion equation
394,864,138.14 : 544,905,810.72 = 218,648,350.08 : x - Step 2: Convert to fraction form
394,864,138.14/544,905,810.72 = 218,648,350.08/x - Step 3: Cross multiply
394,864,138.14x = 544,905,810.72 × 218,648,350.08 - Step 4: Simplify right side
394,864,138.14x = 119,142,756,462,932,784 - Step 5: Solve for x
x = 119,142,756,462,932,784/394,864,138.14 - Step 6: Final answer
x = 301,731,013.16
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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.