Finding the Fourth Proportional to 239,210,820.18, 330,109,752.68 and 138,759,573.18
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Solution
The fourth proportional to 239,210,820.18, 330,109,752.68 and 138,759,573.18 is: 191,487,526.98
Step by Step Solution
- Step 1: Write the proportion equation
239,210,820.18 : 330,109,752.68 = 138,759,573.18 : x - Step 2: Convert to fraction form
239,210,820.18/330,109,752.68 = 138,759,573.18/x - Step 3: Cross multiply
239,210,820.18x = 330,109,752.68 × 138,759,573.18 - Step 4: Simplify right side
239,210,820.18x = 45,805,888,383,900,720 - Step 5: Solve for x
x = 45,805,888,383,900,720/239,210,820.18 - Step 6: Final answer
x = 191,487,526.98
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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.