Finding the Fourth Proportional to 221,553,740.13, 305,745,097.29 and 121,084,228.59
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Solution
The fourth proportional to 221,553,740.13, 305,745,097.29 and 121,084,228.59 is: 167,096,746.95
Step by Step Solution
- Step 1: Write the proportion equation
221,553,740.13 : 305,745,097.29 = 121,084,228.59 : x - Step 2: Convert to fraction form
221,553,740.13/305,745,097.29 = 121,084,228.59/x - Step 3: Cross multiply
221,553,740.13x = 305,745,097.29 × 121,084,228.59 - Step 4: Simplify right side
221,553,740.13x = 37,020,909,250,534,152 - Step 5: Solve for x
x = 37,020,909,250,534,152/221,553,740.13 - Step 6: Final answer
x = 167,096,746.95
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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.