Finding the Fourth Proportional to 28,817,518.55, 39,768,489.48 and 15,764,497.21
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Solution
The fourth proportional to 28,817,518.55, 39,768,489.48 and 15,764,497.21 is: 21,755,177.86
Step by Step Solution
- Step 1: Write the proportion equation
28,817,518.55 : 39,768,489.48 = 15,764,497.21 : x - Step 2: Convert to fraction form
28,817,518.55/39,768,489.48 = 15,764,497.21/x - Step 3: Cross multiply
28,817,518.55x = 39,768,489.48 × 15,764,497.21 - Step 4: Simplify right side
28,817,518.55x = 626,930,241,487,469.75 - Step 5: Solve for x
x = 626,930,241,487,469.75/28,817,518.55 - Step 6: Final answer
x = 21,755,177.86
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.