Finding the Fourth Proportional to 213,681,620, 294,880,655.04 and 120,860,130.08
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Solution
The fourth proportional to 213,681,620, 294,880,655.04 and 120,860,130.08 is: 166,786,990.51
Step by Step Solution
- Step 1: Write the proportion equation
213,681,620 : 294,880,655.04 = 120,860,130.08 : x - Step 2: Convert to fraction form
213,681,620/294,880,655.04 = 120,860,130.08/x - Step 3: Cross multiply
213,681,620x = 294,880,655.04 × 120,860,130.08 - Step 4: Simplify right side
213,681,620x = 35,639,314,326,210,008 - Step 5: Solve for x
x = 35,639,314,326,210,008/213,681,620 - Step 6: Final answer
x = 166,786,990.51
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.