Finding the Fourth Proportional to 7,607,993.84, 10,481,386.16 and 5,312,518.64
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Solution
The fourth proportional to 7,607,993.84, 10,481,386.16 and 5,312,518.64 is: 7,318,954.32
Step by Step Solution
- Step 1: Write the proportion equation
7,607,993.84 : 10,481,386.16 = 5,312,518.64 : x - Step 2: Convert to fraction form
7,607,993.84/10,481,386.16 = 5,312,518.64/x - Step 3: Cross multiply
7,607,993.84x = 10,481,386.16 × 5,312,518.64 - Step 4: Simplify right side
7,607,993.84x = 55,682,559,348,038.02 - Step 5: Solve for x
x = 55,682,559,348,038.02/7,607,993.84 - Step 6: Final answer
x = 7,318,954.32
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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.