Finding the Fourth Proportional to 279,648,309.97, 385,960,124.81 and 168,251,744.53
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Solution
The fourth proportional to 279,648,309.97, 385,960,124.81 and 168,251,744.53 is: 232,214,756.90
Step by Step Solution
- Step 1: Write the proportion equation
279,648,309.97 : 385,960,124.81 = 168,251,744.53 : x - Step 2: Convert to fraction form
279,648,309.97/385,960,124.81 = 168,251,744.53/x - Step 3: Cross multiply
279,648,309.97x = 385,960,124.81 × 168,251,744.53 - Step 4: Simplify right side
279,648,309.97x = 64,938,464,317,457,776 - Step 5: Solve for x
x = 64,938,464,317,457,776/279,648,309.97 - Step 6: Final answer
x = 232,214,756.90
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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.