Finding the Fourth Proportional to 22,865,420.79, 31,553,121.92 and 13,573,388.07
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Solution
The fourth proportional to 22,865,420.79, 31,553,121.92 and 13,573,388.07 is: 18,730,587.66
Step by Step Solution
- Step 1: Write the proportion equation
22,865,420.79 : 31,553,121.92 = 13,573,388.07 : x - Step 2: Convert to fraction form
22,865,420.79/31,553,121.92 = 13,573,388.07/x - Step 3: Cross multiply
22,865,420.79x = 31,553,121.92 × 13,573,388.07 - Step 4: Simplify right side
22,865,420.79x = 428,282,768,572,316.56 - Step 5: Solve for x
x = 428,282,768,572,316.56/22,865,420.79 - Step 6: Final answer
x = 18,730,587.66
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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.