Finding the Fourth Proportional to 561,445,081.05, 774,742,216.47 and 310,544,072.79
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Solution
The fourth proportional to 561,445,081.05, 774,742,216.47 and 310,544,072.79 is: 428,522,060.99
Step by Step Solution
- Step 1: Write the proportion equation
561,445,081.05 : 774,742,216.47 = 310,544,072.79 : x - Step 2: Convert to fraction form
561,445,081.05/774,742,216.47 = 310,544,072.79/x - Step 3: Cross multiply
561,445,081.05x = 774,742,216.47 × 310,544,072.79 - Step 4: Simplify right side
561,445,081.05x = 240,591,603,266,982,848 - Step 5: Solve for x
x = 240,591,603,266,982,848/561,445,081.05 - Step 6: Final answer
x = 428,522,060.99
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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.