Finding the Fourth Proportional to 42,274,848.24, 58,340,726.69 and 40,337,745.80
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Solution
The fourth proportional to 42,274,848.24, 58,340,726.69 and 40,337,745.80 is: 55,667,459.51
Step by Step Solution
- Step 1: Write the proportion equation
42,274,848.24 : 58,340,726.69 = 40,337,745.80 : x - Step 2: Convert to fraction form
42,274,848.24/58,340,726.69 = 40,337,745.80/x - Step 3: Cross multiply
42,274,848.24x = 58,340,726.69 × 40,337,745.80 - Step 4: Simplify right side
42,274,848.24x = 2,353,333,402,515,103 - Step 5: Solve for x
x = 2,353,333,402,515,103/42,274,848.24 - Step 6: Final answer
x = 55,667,459.51
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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.