Finding the Fourth Proportional to 1,274,449,254.11, 1,758,506,499.07 and 709,920,086.99
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Solution
The fourth proportional to 1,274,449,254.11, 1,758,506,499.07 and 709,920,086.99 is: 979,559,666.86
Step by Step Solution
- Step 1: Write the proportion equation
1,274,449,254.11 : 1,758,506,499.07 = 709,920,086.99 : x - Step 2: Convert to fraction form
1,274,449,254.11/1,758,506,499.07 = 709,920,086.99/x - Step 3: Cross multiply
1,274,449,254.11x = 1,758,506,499.07 × 709,920,086.99 - Step 4: Simplify right side
1,274,449,254.11x = 1,248,399,086,786,083,584 - Step 5: Solve for x
x = 1,248,399,086,786,083,584/1,274,449,254.11 - Step 6: Final answer
x = 979,559,666.86
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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.