Finding the Fourth Proportional to 1,240,666,633.56, 1,712,043,027.90 and 683,718,565.08
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Solution
The fourth proportional to 1,240,666,633.56, 1,712,043,027.90 and 683,718,565.08 is: 943,489,226.46
Step by Step Solution
- Step 1: Write the proportion equation
1,240,666,633.56 : 1,712,043,027.90 = 683,718,565.08 : x - Step 2: Convert to fraction form
1,240,666,633.56/1,712,043,027.90 = 683,718,565.08/x - Step 3: Cross multiply
1,240,666,633.56x = 1,712,043,027.90 × 683,718,565.08 - Step 4: Simplify right side
1,240,666,633.56x = 1,170,555,602,391,006,464 - Step 5: Solve for x
x = 1,170,555,602,391,006,464/1,240,666,633.56 - Step 6: Final answer
x = 943,489,226.46
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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.