Finding the Fourth Proportional to 219,180,083.75, 302,353,841.40 and 135,521,471.91
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Solution
The fourth proportional to 219,180,083.75, 302,353,841.40 and 135,521,471.91 is: 186,948,726.93
Step by Step Solution
- Step 1: Write the proportion equation
219,180,083.75 : 302,353,841.40 = 135,521,471.91 : x - Step 2: Convert to fraction form
219,180,083.75/302,353,841.40 = 135,521,471.91/x - Step 3: Cross multiply
219,180,083.75x = 302,353,841.40 × 135,521,471.91 - Step 4: Simplify right side
219,180,083.75x = 40,975,437,624,170,688 - Step 5: Solve for x
x = 40,975,437,624,170,688/219,180,083.75 - Step 6: Final answer
x = 186,948,726.93
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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.