Finding the Fourth Proportional to 518,752,911.66, 778,128,408.06 and 168,998,562.06
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Solution
The fourth proportional to 518,752,911.66, 778,128,408.06 and 168,998,562.06 is: 253,497,530.53
Step by Step Solution
- Step 1: Write the proportion equation
518,752,911.66 : 778,128,408.06 = 168,998,562.06 : x - Step 2: Convert to fraction form
518,752,911.66/778,128,408.06 = 168,998,562.06/x - Step 3: Cross multiply
518,752,911.66x = 778,128,408.06 × 168,998,562.06 - Step 4: Simplify right side
518,752,911.66x = 131,502,582,060,176,912 - Step 5: Solve for x
x = 131,502,582,060,176,912/518,752,911.66 - Step 6: Final answer
x = 253,497,530.53
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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.