Finding the Fourth Proportional to 292,473,698.97, 438,710,521.82 and 128,711,455.48
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Solution
The fourth proportional to 292,473,698.97, 438,710,521.82 and 128,711,455.48 is: 193,067,171.50
Step by Step Solution
- Step 1: Write the proportion equation
292,473,698.97 : 438,710,521.82 = 128,711,455.48 : x - Step 2: Convert to fraction form
292,473,698.97/438,710,521.82 = 128,711,455.48/x - Step 3: Cross multiply
292,473,698.97x = 438,710,521.82 × 128,711,455.48 - Step 4: Simplify right side
292,473,698.97x = 56,467,069,797,842,496 - Step 5: Solve for x
x = 56,467,069,797,842,496/292,473,698.97 - Step 6: Final answer
x = 193,067,171.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.