Finding the Fourth Proportional to 155,509,214.99, 214,602,708.48 and 83,982,089.65
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Solution
The fourth proportional to 155,509,214.99, 214,602,708.48 and 83,982,089.65 is: 115,895,279.29
Step by Step Solution
- Step 1: Write the proportion equation
155,509,214.99 : 214,602,708.48 = 83,982,089.65 : x - Step 2: Convert to fraction form
155,509,214.99/214,602,708.48 = 83,982,089.65/x - Step 3: Cross multiply
155,509,214.99x = 214,602,708.48 × 83,982,089.65 - Step 4: Simplify right side
155,509,214.99x = 18,022,783,902,816,772 - Step 5: Solve for x
x = 18,022,783,902,816,772/155,509,214.99 - Step 6: Final answer
x = 115,895,279.29
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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.