Finding the Fourth Proportional to 1,195,338,982.13, 1,789,330,993.72 and 779,921,306.45
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Solution
The fourth proportional to 1,195,338,982.13, 1,789,330,993.72 and 779,921,306.45 is: 1,167,482,519.31
Step by Step Solution
- Step 1: Write the proportion equation
1,195,338,982.13 : 1,789,330,993.72 = 779,921,306.45 : x - Step 2: Convert to fraction form
1,195,338,982.13/1,789,330,993.72 = 779,921,306.45/x - Step 3: Cross multiply
1,195,338,982.13x = 1,789,330,993.72 × 779,921,306.45 - Step 4: Simplify right side
1,195,338,982.13x = 1,395,537,366,289,679,616 - Step 5: Solve for x
x = 1,395,537,366,289,679,616/1,195,338,982.13 - Step 6: Final answer
x = 1,167,482,519.31
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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.