Finding the Fourth Proportional to 80,779,315.20, 121,165,862.40 and 26,926,627.20
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Solution
The fourth proportional to 80,779,315.20, 121,165,862.40 and 26,926,627.20 is: 40,388,903.99
Step by Step Solution
- Step 1: Write the proportion equation
80,779,315.20 : 121,165,862.40 = 26,926,627.20 : x - Step 2: Convert to fraction form
80,779,315.20/121,165,862.40 = 26,926,627.20/x - Step 3: Cross multiply
80,779,315.20x = 121,165,862.40 × 26,926,627.20 - Step 4: Simplify right side
80,779,315.20x = 3,262,588,006,211,297.50 - Step 5: Solve for x
x = 3,262,588,006,211,297.50/80,779,315.20 - Step 6: Final answer
x = 40,388,903.99
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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.