Finding the Fourth Proportional to 13,128,726.57, 19,700,028.15 and 9,315,194.53
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Solution
The fourth proportional to 13,128,726.57, 19,700,028.15 and 9,315,194.53 is: 13,977,714.70
Step by Step Solution
- Step 1: Write the proportion equation
13,128,726.57 : 19,700,028.15 = 9,315,194.53 : x - Step 2: Convert to fraction form
13,128,726.57/19,700,028.15 = 9,315,194.53/x - Step 3: Cross multiply
13,128,726.57x = 19,700,028.15 × 9,315,194.53 - Step 4: Simplify right side
13,128,726.57x = 183,509,594,365,225.88 - Step 5: Solve for x
x = 183,509,594,365,225.88/13,128,726.57 - Step 6: Final answer
x = 13,977,714.70
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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.