Finding the Fourth Proportional to 139,420,672.93, 208,939,688.47 and 88,211,018.53
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Solution
The fourth proportional to 139,420,672.93, 208,939,688.47 and 88,211,018.53 is: 132,195,479.65
Step by Step Solution
- Step 1: Write the proportion equation
139,420,672.93 : 208,939,688.47 = 88,211,018.53 : x - Step 2: Convert to fraction form
139,420,672.93/208,939,688.47 = 88,211,018.53/x - Step 3: Cross multiply
139,420,672.93x = 208,939,688.47 × 88,211,018.53 - Step 4: Simplify right side
139,420,672.93x = 18,430,782,731,279,596 - Step 5: Solve for x
x = 18,430,782,731,279,596/139,420,672.93 - Step 6: Final answer
x = 132,195,479.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.