Finding the Fourth Proportional to 258,391,002.24, 387,430,390.08 and 102,968,720.64
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Solution
The fourth proportional to 258,391,002.24, 387,430,390.08 and 102,968,720.64 is: 154,390,869.87
Step by Step Solution
- Step 1: Write the proportion equation
258,391,002.24 : 387,430,390.08 = 102,968,720.64 : x - Step 2: Convert to fraction form
258,391,002.24/387,430,390.08 = 102,968,720.64/x - Step 3: Cross multiply
258,391,002.24x = 387,430,390.08 × 102,968,720.64 - Step 4: Simplify right side
258,391,002.24x = 39,893,211,603,593,744 - Step 5: Solve for x
x = 39,893,211,603,593,744/258,391,002.24 - Step 6: Final answer
x = 154,390,869.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.