Finding the Fourth Proportional to 245,746,655.40, 368,619,983.10 and 149,315,701.80
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Solution
The fourth proportional to 245,746,655.40, 368,619,983.10 and 149,315,701.80 is: 223,973,552.70
Step by Step Solution
- Step 1: Write the proportion equation
245,746,655.40 : 368,619,983.10 = 149,315,701.80 : x - Step 2: Convert to fraction form
245,746,655.40/368,619,983.10 = 149,315,701.80/x - Step 3: Cross multiply
245,746,655.40x = 368,619,983.10 × 149,315,701.80 - Step 4: Simplify right side
245,746,655.40x = 55,040,751,474,080,648 - Step 5: Solve for x
x = 55,040,751,474,080,648/245,746,655.40 - Step 6: Final answer
x = 223,973,552.70
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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.