Finding the Fourth Proportional to 828,749,067.84, 1,143,700,782.48 and 452,425,721.40
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Solution
The fourth proportional to 828,749,067.84, 1,143,700,782.48 and 452,425,721.40 is: 624,362,272.80
Step by Step Solution
- Step 1: Write the proportion equation
828,749,067.84 : 1,143,700,782.48 = 452,425,721.40 : x - Step 2: Convert to fraction form
828,749,067.84/1,143,700,782.48 = 452,425,721.40/x - Step 3: Cross multiply
828,749,067.84x = 1,143,700,782.48 × 452,425,721.40 - Step 4: Simplify right side
828,749,067.84x = 517,439,651,579,258,432 - Step 5: Solve for x
x = 517,439,651,579,258,432/828,749,067.84 - Step 6: Final answer
x = 624,362,272.80
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1.5x scale
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.