Finding the Fourth Proportional to 345,099,013.80, 517,648,520.70 and 163,700,485.80
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Solution
The fourth proportional to 345,099,013.80, 517,648,520.70 and 163,700,485.80 is: 245,550,728.70
Step by Step Solution
- Step 1: Write the proportion equation
345,099,013.80 : 517,648,520.70 = 163,700,485.80 : x - Step 2: Convert to fraction form
345,099,013.80/517,648,520.70 = 163,700,485.80/x - Step 3: Cross multiply
345,099,013.80x = 517,648,520.70 × 163,700,485.80 - Step 4: Simplify right side
345,099,013.80x = 84,739,314,312,241,360 - Step 5: Solve for x
x = 84,739,314,312,241,360/345,099,013.80 - Step 6: Final answer
x = 245,550,728.70
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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.