Finding the Fourth Proportional to 168,863,763,136.05, 253,338,518,520.85 and 78,170,563,774.53
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Solution
The fourth proportional to 168,863,763,136.05, 253,338,518,520.85 and 78,170,563,774.53 is: 117,275,692,847.28
Step by Step Solution
- Step 1: Write the proportion equation
168,863,763,136.05 : 253,338,518,520.85 = 78,170,563,774.53 : x - Step 2: Convert to fraction form
168,863,763,136.05/253,338,518,520.85 = 78,170,563,774.53/x - Step 3: Cross multiply
168,863,763,136.05x = 253,338,518,520.85 × 78,170,563,774.53 - Step 4: Simplify right side
168,863,763,136.05x = 19,803,614,818,579,056,164,864 - Step 5: Solve for x
x = 19,803,614,818,579,056,164,864/168,863,763,136.05 - Step 6: Final answer
x = 117,275,692,847.28
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1.5x scale
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.