Finding the Fourth Proportional to 426,497,597.19, 639,982,460.55 and 208,149,747.93
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Solution
The fourth proportional to 426,497,597.19, 639,982,460.55 and 208,149,747.93 is: 312,339,831.97
Step by Step Solution
- Step 1: Write the proportion equation
426,497,597.19 : 639,982,460.55 = 208,149,747.93 : x - Step 2: Convert to fraction form
426,497,597.19/639,982,460.55 = 208,149,747.93/x - Step 3: Cross multiply
426,497,597.19x = 639,982,460.55 × 208,149,747.93 - Step 4: Simplify right side
426,497,597.19x = 133,212,187,843,103,664 - Step 5: Solve for x
x = 133,212,187,843,103,664/426,497,597.19 - Step 6: Final answer
x = 312,339,831.97
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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.