Finding the Fourth Proportional to 272,973,828, 409,460,742 and 91,221,006
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Solution
The fourth proportional to 272,973,828, 409,460,742 and 91,221,006 is: 136,831,509
Step by Step Solution
- Step 1: Write the proportion equation
272,973,828 : 409,460,742 = 91,221,006 : x - Step 2: Convert to fraction form
272,973,828/409,460,742 = 91,221,006/x - Step 3: Cross multiply
272,973,828x = 409,460,742 × 91,221,006 - Step 4: Simplify right side
272,973,828x = 37,351,420,802,746,448 - Step 5: Solve for x
x = 37,351,420,802,746,448/272,973,828 - Step 6: Final answer
x = 136,831,509
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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.