Finding the Fourth Proportional to 555,382,270.74, 766,433,756.01 and 317,258,977.02
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Solution
The fourth proportional to 555,382,270.74, 766,433,756.01 and 317,258,977.02 is: 437,820,942.79
Step by Step Solution
- Step 1: Write the proportion equation
555,382,270.74 : 766,433,756.01 = 317,258,977.02 : x - Step 2: Convert to fraction form
555,382,270.74/766,433,756.01 = 317,258,977.02/x - Step 3: Cross multiply
555,382,270.74x = 766,433,756.01 × 317,258,977.02 - Step 4: Simplify right side
555,382,270.74x = 243,157,989,385,328,864 - Step 5: Solve for x
x = 243,157,989,385,328,864/555,382,270.74 - Step 6: Final answer
x = 437,820,942.79
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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.