Finding the Fourth Proportional to 19,444,455.70, 29,148,021.15 and 15,124,110.10
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Solution
The fourth proportional to 19,444,455.70, 29,148,021.15 and 15,124,110.10 is: 22,671,649.33
Step by Step Solution
- Step 1: Write the proportion equation
19,444,455.70 : 29,148,021.15 = 15,124,110.10 : x - Step 2: Convert to fraction form
19,444,455.70/29,148,021.15 = 15,124,110.10/x - Step 3: Cross multiply
19,444,455.70x = 29,148,021.15 × 15,124,110.10 - Step 4: Simplify right side
19,444,455.70x = 440,837,881,069,728.56 - Step 5: Solve for x
x = 440,837,881,069,728.56/19,444,455.70 - Step 6: Final answer
x = 22,671,649.33
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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.