Finding the Fourth Proportional to 1,113,325,686.23, 1,670,203,320.03 and 423,178,984.17
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Solution
The fourth proportional to 1,113,325,686.23, 1,670,203,320.03 and 423,178,984.17 is: 634,850,118.95
Step by Step Solution
- Step 1: Write the proportion equation
1,113,325,686.23 : 1,670,203,320.03 = 423,178,984.17 : x - Step 2: Convert to fraction form
1,113,325,686.23/1,670,203,320.03 = 423,178,984.17/x - Step 3: Cross multiply
1,113,325,686.23x = 1,670,203,320.03 × 423,178,984.17 - Step 4: Simplify right side
1,113,325,686.23x = 706,794,944,327,656,832 - Step 5: Solve for x
x = 706,794,944,327,656,832/1,113,325,686.23 - Step 6: Final answer
x = 634,850,118.95
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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.