Finding the Fourth Proportional to 19,792,809.30, 29,679,896.90 and 7,667,950.08
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Solution
The fourth proportional to 19,792,809.30, 29,679,896.90 and 7,667,950.08 is: 11,498,315.59
Step by Step Solution
- Step 1: Write the proportion equation
19,792,809.30 : 29,679,896.90 = 7,667,950.08 : x - Step 2: Convert to fraction form
19,792,809.30/29,679,896.90 = 7,667,950.08/x - Step 3: Cross multiply
19,792,809.30x = 29,679,896.90 × 7,667,950.08 - Step 4: Simplify right side
19,792,809.30x = 227,583,967,808,746.75 - Step 5: Solve for x
x = 227,583,967,808,746.75/19,792,809.30 - Step 6: Final answer
x = 11,498,315.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.