Finding the Fourth Proportional to 2,159,391,072.19, 2,979,970,699.13 and 1,206,787,709.01
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Solution
The fourth proportional to 2,159,391,072.19, 2,979,970,699.13 and 1,206,787,709.01 is: 1,665,373,196.75
Step by Step Solution
- Step 1: Write the proportion equation
2,159,391,072.19 : 2,979,970,699.13 = 1,206,787,709.01 : x - Step 2: Convert to fraction form
2,159,391,072.19/2,979,970,699.13 = 1,206,787,709.01/x - Step 3: Cross multiply
2,159,391,072.19x = 2,979,970,699.13 × 1,206,787,709.01 - Step 4: Simplify right side
2,159,391,072.19x = 3,596,192,012,924,453,888 - Step 5: Solve for x
x = 3,596,192,012,924,453,888/2,159,391,072.19 - Step 6: Final answer
x = 1,665,373,196.75
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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.