Finding the Fourth Proportional to 922,752,026.80, 1,384,128,040.20 and 861,837,953.20
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Solution
The fourth proportional to 922,752,026.80, 1,384,128,040.20 and 861,837,953.20 is: 1,292,756,929.80
Step by Step Solution
- Step 1: Write the proportion equation
922,752,026.80 : 1,384,128,040.20 = 861,837,953.20 : x - Step 2: Convert to fraction form
922,752,026.80/1,384,128,040.20 = 861,837,953.20/x - Step 3: Cross multiply
922,752,026.80x = 1,384,128,040.20 × 861,837,953.20 - Step 4: Simplify right side
922,752,026.80x = 1,192,894,077,132,695,552 - Step 5: Solve for x
x = 1,192,894,077,132,695,552/922,752,026.80 - Step 6: Final answer
x = 1,292,756,929.80
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1.5x scale
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.