Finding the Fourth Proportional to 130,032,450.88, 195,018,829.12 and 77,524,979.75
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Solution
The fourth proportional to 130,032,450.88, 195,018,829.12 and 77,524,979.75 is: 116,269,674.80
Step by Step Solution
- Step 1: Write the proportion equation
130,032,450.88 : 195,018,829.12 = 77,524,979.75 : x - Step 2: Convert to fraction form
130,032,450.88/195,018,829.12 = 77,524,979.75/x - Step 3: Cross multiply
130,032,450.88x = 195,018,829.12 × 77,524,979.75 - Step 4: Simplify right side
130,032,450.88x = 15,118,830,777,227,806 - Step 5: Solve for x
x = 15,118,830,777,227,806/130,032,450.88 - Step 6: Final answer
x = 116,269,674.80
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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.