Finding the Fourth Proportional to 42,117,985, 63,176,986.14 and 15,191,638.12
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Solution
The fourth proportional to 42,117,985, 63,176,986.14 and 15,191,638.12 is: 22,787,460.30
Step by Step Solution
- Step 1: Write the proportion equation
42,117,985 : 63,176,986.14 = 15,191,638.12 : x - Step 2: Convert to fraction form
42,117,985/63,176,986.14 = 15,191,638.12/x - Step 3: Cross multiply
42,117,985x = 63,176,986.14 × 15,191,638.12 - Step 4: Simplify right side
42,117,985x = 959,761,910,951,135.62 - Step 5: Solve for x
x = 959,761,910,951,135.62/42,117,985 - Step 6: Final answer
x = 22,787,460.30
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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.