Finding the Fourth Proportional to 518,126,857.49, 777,539,983.13 and 202,953,792.87
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Solution
The fourth proportional to 518,126,857.49, 777,539,983.13 and 202,953,792.87 is: 304,567,667.94
Step by Step Solution
- Step 1: Write the proportion equation
518,126,857.49 : 777,539,983.13 = 202,953,792.87 : x - Step 2: Convert to fraction form
518,126,857.49/777,539,983.13 = 202,953,792.87/x - Step 3: Cross multiply
518,126,857.49x = 777,539,983.13 × 202,953,792.87 - Step 4: Simplify right side
518,126,857.49x = 157,804,688,680,421,632 - Step 5: Solve for x
x = 157,804,688,680,421,632/518,126,857.49 - Step 6: Final answer
x = 304,567,667.94
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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.