Finding the Fourth Proportional to 128,989,807.57, 193,567,952.23 and 47,101,829.68
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Solution
The fourth proportional to 128,989,807.57, 193,567,952.23 and 47,101,829.68 is: 70,683,140.70
Step by Step Solution
- Step 1: Write the proportion equation
128,989,807.57 : 193,567,952.23 = 47,101,829.68 : x - Step 2: Convert to fraction form
128,989,807.57/193,567,952.23 = 47,101,829.68/x - Step 3: Cross multiply
128,989,807.57x = 193,567,952.23 × 47,101,829.68 - Step 4: Simplify right side
128,989,807.57x = 9,117,404,717,568,040 - Step 5: Solve for x
x = 9,117,404,717,568,040/128,989,807.57 - Step 6: Final answer
x = 70,683,140.70
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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.