Finding the Fourth Proportional to 19,792,807.29, 29,679,893.91 and 7,667,948.07
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Solution
The fourth proportional to 19,792,807.29, 29,679,893.91 and 7,667,948.07 is: 11,498,312.59
Step by Step Solution
- Step 1: Write the proportion equation
19,792,807.29 : 29,679,893.91 = 7,667,948.07 : x - Step 2: Convert to fraction form
19,792,807.29/29,679,893.91 = 7,667,948.07/x - Step 3: Cross multiply
19,792,807.29x = 29,679,893.91 × 7,667,948.07 - Step 4: Simplify right side
19,792,807.29x = 227,583,885,224,989.25 - Step 5: Solve for x
x = 227,583,885,224,989.25/19,792,807.29 - Step 6: Final answer
x = 11,498,312.59
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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.