Finding the Fourth Proportional to 139,442,187.42, 209,188,818.97 and 57,516,374.23
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Solution
The fourth proportional to 139,442,187.42, 209,188,818.97 and 57,516,374.23 is: 86,285,095.05
Step by Step Solution
- Step 1: Write the proportion equation
139,442,187.42 : 209,188,818.97 = 57,516,374.23 : x - Step 2: Convert to fraction form
139,442,187.42/209,188,818.97 = 57,516,374.23/x - Step 3: Cross multiply
139,442,187.42x = 209,188,818.97 × 57,516,374.23 - Step 4: Simplify right side
139,442,187.42x = 12,031,782,395,943,480 - Step 5: Solve for x
x = 12,031,782,395,943,480/139,442,187.42 - Step 6: Final answer
x = 86,285,095.05
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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.