Finding the Fourth Proportional to 113,918,965.08, 157,208,926.56 and 61,708,000.80
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Solution
The fourth proportional to 113,918,965.08, 157,208,926.56 and 61,708,000.80 is: 85,157,449.94
Step by Step Solution
- Step 1: Write the proportion equation
113,918,965.08 : 157,208,926.56 = 61,708,000.80 : x - Step 2: Convert to fraction form
113,918,965.08/157,208,926.56 = 61,708,000.80/x - Step 3: Cross multiply
113,918,965.08x = 157,208,926.56 × 61,708,000.80 - Step 4: Simplify right side
113,918,965.08x = 9,701,048,565,931,620 - Step 5: Solve for x
x = 9,701,048,565,931,620/113,918,965.08 - Step 6: Final answer
x = 85,157,449.94
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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.