Finding the Fourth Proportional to 19,118,455.40, 28,677,657.04 and 8,877,715.28
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Solution
The fourth proportional to 19,118,455.40, 28,677,657.04 and 8,877,715.28 is: 13,316,560.82
Step by Step Solution
- Step 1: Write the proportion equation
19,118,455.40 : 28,677,657.04 = 8,877,715.28 : x - Step 2: Convert to fraction form
19,118,455.40/28,677,657.04 = 8,877,715.28/x - Step 3: Cross multiply
19,118,455.40x = 28,677,657.04 × 8,877,715.28 - Step 4: Simplify right side
19,118,455.40x = 254,592,074,098,607.53 - Step 5: Solve for x
x = 254,592,074,098,607.53/19,118,455.40 - Step 6: Final answer
x = 13,316,560.82
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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.