Finding the Fourth Proportional to 687,455,895.24, 1,031,173,745.40 and 169,886,323.44
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Solution
The fourth proportional to 687,455,895.24, 1,031,173,745.40 and 169,886,323.44 is: 254,826,989.84
Step by Step Solution
- Step 1: Write the proportion equation
687,455,895.24 : 1,031,173,745.40 = 169,886,323.44 : x - Step 2: Convert to fraction form
687,455,895.24/1,031,173,745.40 = 169,886,323.44/x - Step 3: Cross multiply
687,455,895.24x = 1,031,173,745.40 × 169,886,323.44 - Step 4: Simplify right side
687,455,895.24x = 175,182,316,433,860,608 - Step 5: Solve for x
x = 175,182,316,433,860,608/687,455,895.24 - Step 6: Final answer
x = 254,826,989.84
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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.