Finding the Fourth Proportional to 5,637,553.28, 7,779,828.80 and 3,223,155.84
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Solution
The fourth proportional to 5,637,553.28, 7,779,828.80 and 3,223,155.84 is: 4,447,958.07
Step by Step Solution
- Step 1: Write the proportion equation
5,637,553.28 : 7,779,828.80 = 3,223,155.84 : x - Step 2: Convert to fraction form
5,637,553.28/7,779,828.80 = 3,223,155.84/x - Step 3: Cross multiply
5,637,553.28x = 7,779,828.80 × 3,223,155.84 - Step 4: Simplify right side
5,637,553.28x = 25,075,600,630,920.19 - Step 5: Solve for x
x = 25,075,600,630,920.19/5,637,553.28 - Step 6: Final answer
x = 4,447,958.07
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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.