Finding the Fourth Proportional to 489,388,421,201.54, 675,266,368,326.50 and 272,609,221,026.76
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Solution
The fourth proportional to 489,388,421,201.54, 675,266,368,326.50 and 272,609,221,026.76 is: 376,150,784,693.88
Step by Step Solution
- Step 1: Write the proportion equation
489,388,421,201.54 : 675,266,368,326.50 = 272,609,221,026.76 : x - Step 2: Convert to fraction form
489,388,421,201.54/675,266,368,326.50 = 272,609,221,026.76/x - Step 3: Cross multiply
489,388,421,201.54x = 675,266,368,326.50 × 272,609,221,026.76 - Step 4: Simplify right side
489,388,421,201.54x = 184,083,838,655,056,362,602,496 - Step 5: Solve for x
x = 184,083,838,655,056,362,602,496/489,388,421,201.54 - Step 6: Final answer
x = 376,150,784,693.88
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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.