Finding the Fourth Proportional to 168,863,763,101.05, 253,338,518,468.36 and 78,170,563,739.53
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Solution
The fourth proportional to 168,863,763,101.05, 253,338,518,468.36 and 78,170,563,739.53 is: 117,275,692,794.78
Step by Step Solution
- Step 1: Write the proportion equation
168,863,763,101.05 : 253,338,518,468.36 = 78,170,563,739.53 : x - Step 2: Convert to fraction form
168,863,763,101.05/253,338,518,468.36 = 78,170,563,739.53/x - Step 3: Cross multiply
168,863,763,101.05x = 253,338,518,468.36 × 78,170,563,739.53 - Step 4: Simplify right side
168,863,763,101.05x = 19,803,614,805,609,030,877,184 - Step 5: Solve for x
x = 19,803,614,805,609,030,877,184/168,863,763,101.05 - Step 6: Final answer
x = 117,275,692,794.78
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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.