Finding the Fourth Proportional to 66,432,078.30, 99,648,117.45 and 57,344,437.20
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Solution
The fourth proportional to 66,432,078.30, 99,648,117.45 and 57,344,437.20 is: 86,016,655.80
Step by Step Solution
- Step 1: Write the proportion equation
66,432,078.30 : 99,648,117.45 = 57,344,437.20 : x - Step 2: Convert to fraction form
66,432,078.30/99,648,117.45 = 57,344,437.20/x - Step 3: Cross multiply
66,432,078.30x = 99,648,117.45 × 57,344,437.20 - Step 4: Simplify right side
66,432,078.30x = 5,714,265,213,209,750 - Step 5: Solve for x
x = 5,714,265,213,209,750/66,432,078.30 - Step 6: Final answer
x = 86,016,655.80
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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.