Finding the Fourth Proportional to 165,804,569.60, 248,704,521.60 and 74,928,012.80
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Solution
The fourth proportional to 165,804,569.60, 248,704,521.60 and 74,928,012.80 is: 112,390,964.99
Step by Step Solution
- Step 1: Write the proportion equation
165,804,569.60 : 248,704,521.60 = 74,928,012.80 : x - Step 2: Convert to fraction form
165,804,569.60/248,704,521.60 = 74,928,012.80/x - Step 3: Cross multiply
165,804,569.60x = 248,704,521.60 × 74,928,012.80 - Step 4: Simplify right side
165,804,569.60x = 18,634,935,577,862,676 - Step 5: Solve for x
x = 18,634,935,577,862,676/165,804,569.60 - Step 6: Final answer
x = 112,390,964.99
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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.