Finding the Fourth Proportional to 138,247,998.74, 190,785,050.65 and 75,528,159.05
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Solution
The fourth proportional to 138,247,998.74, 190,785,050.65 and 75,528,159.05 is: 104,230,395.96
Step by Step Solution
- Step 1: Write the proportion equation
138,247,998.74 : 190,785,050.65 = 75,528,159.05 : x - Step 2: Convert to fraction form
138,247,998.74/190,785,050.65 = 75,528,159.05/x - Step 3: Cross multiply
138,247,998.74x = 190,785,050.65 × 75,528,159.05 - Step 4: Simplify right side
138,247,998.74x = 14,409,643,648,523,940 - Step 5: Solve for x
x = 14,409,643,648,523,940/138,247,998.74 - Step 6: Final answer
x = 104,230,395.96
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.