Finding the Fourth Proportional to 13,217,038.79, 18,239,827.91 and 7,416,249.53
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Solution
The fourth proportional to 13,217,038.79, 18,239,827.91 and 7,416,249.53 is: 10,234,600.75
Step by Step Solution
- Step 1: Write the proportion equation
13,217,038.79 : 18,239,827.91 = 7,416,249.53 : x - Step 2: Convert to fraction form
13,217,038.79/18,239,827.91 = 7,416,249.53/x - Step 3: Cross multiply
13,217,038.79x = 18,239,827.91 × 7,416,249.53 - Step 4: Simplify right side
13,217,038.79x = 135,271,115,036,538.02 - Step 5: Solve for x
x = 135,271,115,036,538.02/13,217,038.79 - Step 6: Final answer
x = 10,234,600.75
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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.