Finding the Fourth Proportional to 42,533,125.80, 63,799,688.70 and 40,293,637.80
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Solution
The fourth proportional to 42,533,125.80, 63,799,688.70 and 40,293,637.80 is: 60,440,456.70
Step by Step Solution
- Step 1: Write the proportion equation
42,533,125.80 : 63,799,688.70 = 40,293,637.80 : x - Step 2: Convert to fraction form
42,533,125.80/63,799,688.70 = 40,293,637.80/x - Step 3: Cross multiply
42,533,125.80x = 63,799,688.70 × 40,293,637.80 - Step 4: Simplify right side
42,533,125.80x = 2,570,721,548,230,553 - Step 5: Solve for x
x = 2,570,721,548,230,553/42,533,125.80 - Step 6: Final answer
x = 60,440,456.70
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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.