Finding the Fourth Proportional to 39,110,840.32, 53,973,534.72 and 21,708,303.36
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Solution
The fourth proportional to 39,110,840.32, 53,973,534.72 and 21,708,303.36 is: 29,957,777.83
Step by Step Solution
- Step 1: Write the proportion equation
39,110,840.32 : 53,973,534.72 = 21,708,303.36 : x - Step 2: Convert to fraction form
39,110,840.32/53,973,534.72 = 21,708,303.36/x - Step 3: Cross multiply
39,110,840.32x = 53,973,534.72 × 21,708,303.36 - Step 4: Simplify right side
39,110,840.32x = 1,171,673,865,113,252.50 - Step 5: Solve for x
x = 1,171,673,865,113,252.50/39,110,840.32 - Step 6: Final answer
x = 29,957,777.83
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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.