Finding the Fourth Proportional to 71,423,352.13, 98,565,053.55 and 39,634,174.34
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Solution
The fourth proportional to 71,423,352.13, 98,565,053.55 and 39,634,174.34 is: 54,695,619.85
Step by Step Solution
- Step 1: Write the proportion equation
71,423,352.13 : 98,565,053.55 = 39,634,174.34 : x - Step 2: Convert to fraction form
71,423,352.13/98,565,053.55 = 39,634,174.34/x - Step 3: Cross multiply
71,423,352.13x = 98,565,053.55 × 39,634,174.34 - Step 4: Simplify right side
71,423,352.13x = 3,906,544,516,232,136 - Step 5: Solve for x
x = 3,906,544,516,232,136/71,423,352.13 - Step 6: Final answer
x = 54,695,619.85
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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.