Finding the Fourth Proportional to 706,691,038.73, 975,214,625.87 and 393,425,246.21
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Solution
The fourth proportional to 706,691,038.73, 975,214,625.87 and 393,425,246.21 is: 542,916,257.97
Step by Step Solution
- Step 1: Write the proportion equation
706,691,038.73 : 975,214,625.87 = 393,425,246.21 : x - Step 2: Convert to fraction form
706,691,038.73/975,214,625.87 = 393,425,246.21/x - Step 3: Cross multiply
706,691,038.73x = 975,214,625.87 × 393,425,246.21 - Step 4: Simplify right side
706,691,038.73x = 383,674,054,286,605,248 - Step 5: Solve for x
x = 383,674,054,286,605,248/706,691,038.73 - Step 6: Final answer
x = 542,916,257.97
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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.