Finding the Fourth Proportional to 38,854,655.57, 58,281,183.18 and 12,948,837.86
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Solution
The fourth proportional to 38,854,655.57, 58,281,183.18 and 12,948,837.86 is: 19,422,990.12
Step by Step Solution
- Step 1: Write the proportion equation
38,854,655.57 : 58,281,183.18 = 12,948,837.86 : x - Step 2: Convert to fraction form
38,854,655.57/58,281,183.18 = 12,948,837.86/x - Step 3: Cross multiply
38,854,655.57x = 58,281,183.18 × 12,948,837.86 - Step 4: Simplify right side
38,854,655.57x = 754,673,591,432,482.25 - Step 5: Solve for x
x = 754,673,591,432,482.25/38,854,655.57 - Step 6: Final answer
x = 19,422,990.12
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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.