Finding the Fourth Proportional to 744,963,541.74, 1,117,408,166.34 and 278,590,678.50
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Solution
The fourth proportional to 744,963,541.74, 1,117,408,166.34 and 278,590,678.50 is: 417,872,126.33
Step by Step Solution
- Step 1: Write the proportion equation
744,963,541.74 : 1,117,408,166.34 = 278,590,678.50 : x - Step 2: Convert to fraction form
744,963,541.74/1,117,408,166.34 = 278,590,678.50/x - Step 3: Cross multiply
744,963,541.74x = 1,117,408,166.34 × 278,590,678.50 - Step 4: Simplify right side
744,963,541.74x = 311,299,499,222,101,440 - Step 5: Solve for x
x = 311,299,499,222,101,440/744,963,541.74 - Step 6: Final answer
x = 417,872,126.33
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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.