Finding the Fourth Proportional to 13,307,018.85, 19,955,862.68 and 6,915,146.85
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Solution
The fourth proportional to 13,307,018.85, 19,955,862.68 and 6,915,146.85 is: 10,370,295.74
Step by Step Solution
- Step 1: Write the proportion equation
13,307,018.85 : 19,955,862.68 = 6,915,146.85 : x - Step 2: Convert to fraction form
13,307,018.85/19,955,862.68 = 6,915,146.85/x - Step 3: Cross multiply
13,307,018.85x = 19,955,862.68 × 6,915,146.85 - Step 4: Simplify right side
13,307,018.85x = 137,997,720,916,058.83 - Step 5: Solve for x
x = 137,997,720,916,058.83/13,307,018.85 - Step 6: Final answer
x = 10,370,295.74
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1.5x scale
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.