Finding the Fourth Proportional to 19,903,788.16, 27,456,692.44 and 13,698,060.84
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Solution
The fourth proportional to 19,903,788.16, 27,456,692.44 and 13,698,060.84 is: 18,896,073.48
Step by Step Solution
- Step 1: Write the proportion equation
19,903,788.16 : 27,456,692.44 = 13,698,060.84 : x - Step 2: Convert to fraction form
19,903,788.16/27,456,692.44 = 13,698,060.84/x - Step 3: Cross multiply
19,903,788.16x = 27,456,692.44 × 13,698,060.84 - Step 4: Simplify right side
19,903,788.16x = 376,103,443,508,288.06 - Step 5: Solve for x
x = 376,103,443,508,288.06/19,903,788.16 - Step 6: Final answer
x = 18,896,073.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.