Finding the Fourth Proportional to 28,656,281.34, 39,545,499.80 and 15,603,509.00
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Solution
The fourth proportional to 28,656,281.34, 39,545,499.80 and 15,603,509.00 is: 21,532,750.70
Step by Step Solution
- Step 1: Write the proportion equation
28,656,281.34 : 39,545,499.80 = 15,603,509.00 : x - Step 2: Convert to fraction form
28,656,281.34/39,545,499.80 = 15,603,509.00/x - Step 3: Cross multiply
28,656,281.34x = 39,545,499.80 × 15,603,509.00 - Step 4: Simplify right side
28,656,281.34x = 617,048,562,176,670.75 - Step 5: Solve for x
x = 617,048,562,176,670.75/28,656,281.34 - Step 6: Final answer
x = 21,532,750.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.