Finding the Fourth Proportional to 12,736,980.21, 19,087,794.49 and 5,803,515.12
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Solution
The fourth proportional to 12,736,980.21, 19,087,794.49 and 5,803,515.12 is: 8,697,218.81
Step by Step Solution
- Step 1: Write the proportion equation
12,736,980.21 : 19,087,794.49 = 5,803,515.12 : x - Step 2: Convert to fraction form
12,736,980.21/19,087,794.49 = 5,803,515.12/x - Step 3: Cross multiply
12,736,980.21x = 19,087,794.49 × 5,803,515.12 - Step 4: Simplify right side
12,736,980.21x = 110,776,303,915,658.91 - Step 5: Solve for x
x = 110,776,303,915,658.91/12,736,980.21 - Step 6: Final answer
x = 8,697,218.81
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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.