Finding the Fourth Proportional to 555,382,271.24, 766,433,756.70 and 317,258,977.52
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Solution
The fourth proportional to 555,382,271.24, 766,433,756.70 and 317,258,977.52 is: 437,820,943.48
Step by Step Solution
- Step 1: Write the proportion equation
555,382,271.24 : 766,433,756.70 = 317,258,977.52 : x - Step 2: Convert to fraction form
555,382,271.24/766,433,756.70 = 317,258,977.52/x - Step 3: Cross multiply
555,382,271.24x = 766,433,756.70 × 317,258,977.52 - Step 4: Simplify right side
555,382,271.24x = 243,157,989,987,454,464 - Step 5: Solve for x
x = 243,157,989,987,454,464/555,382,271.24 - Step 6: Final answer
x = 437,820,943.48
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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.