Finding the Fourth Proportional to 99,374,932.80, 148,973,752.80 and 38,776,564.80
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Solution
The fourth proportional to 99,374,932.80, 148,973,752.80 and 38,776,564.80 is: 58,130,256.96
Step by Step Solution
- Step 1: Write the proportion equation
99,374,932.80 : 148,973,752.80 = 38,776,564.80 : x - Step 2: Convert to fraction form
99,374,932.80/148,973,752.80 = 38,776,564.80/x - Step 3: Cross multiply
99,374,932.80x = 148,973,752.80 × 38,776,564.80 - Step 4: Simplify right side
99,374,932.80x = 5,776,690,378,948,381 - Step 5: Solve for x
x = 5,776,690,378,948,381/99,374,932.80 - Step 6: Final answer
x = 58,130,256.96
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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.