Finding the Fourth Proportional to 28,562,683.80, 39,416,378.99 and 15,509,836.74
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Solution
The fourth proportional to 28,562,683.80, 39,416,378.99 and 15,509,836.74 is: 21,403,507.01
Step by Step Solution
- Step 1: Write the proportion equation
28,562,683.80 : 39,416,378.99 = 15,509,836.74 : x - Step 2: Convert to fraction form
28,562,683.80/39,416,378.99 = 15,509,836.74/x - Step 3: Cross multiply
28,562,683.80x = 39,416,378.99 × 15,509,836.74 - Step 4: Simplify right side
28,562,683.80x = 611,341,602,939,316.88 - Step 5: Solve for x
x = 611,341,602,939,316.88/28,562,683.80 - Step 6: Final answer
x = 21,403,507.01
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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.