Finding the Fourth Proportional to 1,311,662,886.99, 1,967,839,270.20 and 471,390,450.81
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Solution
The fourth proportional to 1,311,662,886.99, 1,967,839,270.20 and 471,390,450.81 is: 707,209,641.98
Step by Step Solution
- Step 1: Write the proportion equation
1,311,662,886.99 : 1,967,839,270.20 = 471,390,450.81 : x - Step 2: Convert to fraction form
1,311,662,886.99/1,967,839,270.20 = 471,390,450.81/x - Step 3: Cross multiply
1,311,662,886.99x = 1,967,839,270.20 × 471,390,450.81 - Step 4: Simplify right side
1,311,662,886.99x = 927,620,640,701,199,488 - Step 5: Solve for x
x = 927,620,640,701,199,488/1,311,662,886.99 - Step 6: Final answer
x = 707,209,641.98
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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.