Finding the Fourth Proportional to 290,177,267.10, 400,444,653.68 and 158,018,223.98
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Solution
The fourth proportional to 290,177,267.10, 400,444,653.68 and 158,018,223.98 is: 218,065,162.75
Step by Step Solution
- Step 1: Write the proportion equation
290,177,267.10 : 400,444,653.68 = 158,018,223.98 : x - Step 2: Convert to fraction form
290,177,267.10/400,444,653.68 = 158,018,223.98/x - Step 3: Cross multiply
290,177,267.10x = 400,444,653.68 × 158,018,223.98 - Step 4: Simplify right side
290,177,267.10x = 63,277,552,976,799,768 - Step 5: Solve for x
x = 63,277,552,976,799,768/290,177,267.10 - Step 6: Final answer
x = 218,065,162.75
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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.