Finding the Fourth Proportional to 620,130,631,182.96, 855,939,497,347.84 and 403,895,663,793.12
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Solution
The fourth proportional to 620,130,631,182.96, 855,939,497,347.84 and 403,895,663,793.12 is: 557,479,721,310.62
Step by Step Solution
- Step 1: Write the proportion equation
620,130,631,182.96 : 855,939,497,347.84 = 403,895,663,793.12 : x - Step 2: Convert to fraction form
620,130,631,182.96/855,939,497,347.84 = 403,895,663,793.12/x - Step 3: Cross multiply
620,130,631,182.96x = 855,939,497,347.84 × 403,895,663,793.12 - Step 4: Simplify right side
620,130,631,182.96x = 345,710,251,448,055,290,134,528 - Step 5: Solve for x
x = 345,710,251,448,055,290,134,528/620,130,631,182.96 - Step 6: Final answer
x = 557,479,721,310.62
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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.