Finding the Fourth Proportional to 189,476,312.21, 284,316,217.14 and 78,888,325.49
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Solution
The fourth proportional to 189,476,312.21, 284,316,217.14 and 78,888,325.49 is: 118,374,851.29
Step by Step Solution
- Step 1: Write the proportion equation
189,476,312.21 : 284,316,217.14 = 78,888,325.49 : x - Step 2: Convert to fraction form
189,476,312.21/284,316,217.14 = 78,888,325.49/x - Step 3: Cross multiply
189,476,312.21x = 284,316,217.14 × 78,888,325.49 - Step 4: Simplify right side
189,476,312.21x = 22,429,230,280,922,200 - Step 5: Solve for x
x = 22,429,230,280,922,200/189,476,312.21 - Step 6: Final answer
x = 118,374,851.29
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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.