Finding the Fourth Proportional to 21,424,037.60, 32,125,925.64 and 8,299,602.74
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Solution
The fourth proportional to 21,424,037.60, 32,125,925.64 and 8,299,602.74 is: 12,445,479.49
Step by Step Solution
- Step 1: Write the proportion equation
21,424,037.60 : 32,125,925.64 = 8,299,602.74 : x - Step 2: Convert to fraction form
21,424,037.60/32,125,925.64 = 8,299,602.74/x - Step 3: Cross multiply
21,424,037.60x = 32,125,925.64 × 8,299,602.74 - Step 4: Simplify right side
21,424,037.60x = 266,632,420,466,780.28 - Step 5: Solve for x
x = 266,632,420,466,780.28/21,424,037.60 - Step 6: Final answer
x = 12,445,479.49
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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.